diff --git a/src/lang/catalan.txt b/src/lang/catalan.txt
index 81e04a0906..939e4137ff 100644
--- a/src/lang/catalan.txt
+++ b/src/lang/catalan.txt
@@ -2528,6 +2528,7 @@ STR_NEWGRF_INVALID_INDUSTRYTYPE                                 :<indústria inv
 STR_NEWGRF_SCAN_CAPTION                                         :{WHITE}Escanejant NewGRFs
 STR_NEWGRF_SCAN_MESSAGE                                         :{BLACK}Escanejant NewGRFs. Depenent de la quantitat pot trigar una estona...
 STR_NEWGRF_SCAN_STATUS                                          :{BLACK}{NUM} NewGRF{P "" s} escanejats de {NUM} NewGRF{P "" s} estimats
+STR_NEWGRF_SCAN_ARCHIVES                                        :Escanejant arxius
 
 # Sign list window
 STR_SIGN_LIST_CAPTION                                           :{WHITE}Llista de senyals - {COMMA} Senyal{P "" s}
diff --git a/src/lang/german.txt b/src/lang/german.txt
index 81cecc5236..16403289d2 100644
--- a/src/lang/german.txt
+++ b/src/lang/german.txt
@@ -2837,6 +2837,8 @@ STR_BUY_VEHICLE_AIRCRAFT_CAPTION                                :Neue Flugzeuge
 STR_PURCHASE_INFO_COST_WEIGHT                                   :{BLACK}Kosten: {GOLD}{CURRENCY}{BLACK} Gewicht: {GOLD}{WEIGHT_S}
 STR_PURCHASE_INFO_SPEED_POWER                                   :{BLACK}Geschw.: {GOLD}{VELOCITY}{BLACK} Leistung: {GOLD}{POWER}
 STR_PURCHASE_INFO_SPEED                                         :{BLACK}Geschwindigkeit: {GOLD}{VELOCITY}
+STR_PURCHASE_INFO_SPEED_OCEAN                                   :{BLACK}Geschwindigkeit auf dem Meer: {GOLD}{VELOCITY}
+STR_PURCHASE_INFO_SPEED_CANAL                                   :{BLACK}Geschwindigkeit auf Kanälen und Flüssen: {GOLD}{VELOCITY}
 STR_PURCHASE_INFO_RUNNINGCOST                                   :{BLACK}Betriebskosten: {GOLD}{CURRENCY} pro Jahr
 STR_PURCHASE_INFO_CAPACITY                                      :{BLACK}Kapazität: {GOLD}{CARGO} {STRING}
 STR_PURCHASE_INFO_REFITTABLE                                    :(umrüstbar)
diff --git a/src/lang/serbian.txt b/src/lang/serbian.txt
index c92396af81..50c6db7280 100644
--- a/src/lang/serbian.txt
+++ b/src/lang/serbian.txt
@@ -3031,6 +3031,8 @@ STR_BUY_VEHICLE_AIRCRAFT_CAPTION                                :Nove Letilice
 STR_PURCHASE_INFO_COST_WEIGHT                                   :{BLACK}Cena: {GOLD}{CURRENCY}{BLACK} Težina: {GOLD}{WEIGHT_S}
 STR_PURCHASE_INFO_SPEED_POWER                                   :{BLACK}Brzina: {GOLD}{VELOCITY}{BLACK} Snaga: {GOLD}{POWER}
 STR_PURCHASE_INFO_SPEED                                         :{BLACK}Brzina: {GOLD}{VELOCITY}
+STR_PURCHASE_INFO_SPEED_OCEAN                                   :{BLACK}Brzina na moru: {GOLD}{VELOCITY}
+STR_PURCHASE_INFO_SPEED_CANAL                                   :{BLACK}Brzina na kanalu/reci: {GOLD}{VELOCITY}
 STR_PURCHASE_INFO_RUNNINGCOST                                   :{BLACK}Cena održavanja: {GOLD}{CURRENCY}/yr
 STR_PURCHASE_INFO_CAPACITY                                      :{BLACK}Nosivost: {GOLD}{CARGO} {STRING}
 STR_PURCHASE_INFO_REFITTABLE                                    :(prepravljiv)
diff --git a/src/lang/spanish.txt b/src/lang/spanish.txt
index 3417c0c889..9acbb36873 100644
--- a/src/lang/spanish.txt
+++ b/src/lang/spanish.txt
@@ -2837,6 +2837,8 @@ STR_BUY_VEHICLE_AIRCRAFT_CAPTION                                :Nueva Aeronave
 STR_PURCHASE_INFO_COST_WEIGHT                                   :{BLACK}Coste: {GOLD}{CURRENCY}{BLACK} Peso: {GOLD}{WEIGHT_S}
 STR_PURCHASE_INFO_SPEED_POWER                                   :{BLACK}Velocidad: {GOLD}{VELOCITY}{BLACK} Potencia: {GOLD}{POWER}
 STR_PURCHASE_INFO_SPEED                                         :{BLACK}Velocidad: {GOLD}{VELOCITY}
+STR_PURCHASE_INFO_SPEED_OCEAN                                   :{BLACK}Velocidad en el océano: {GOLD}{VELOCITY}
+STR_PURCHASE_INFO_SPEED_CANAL                                   :{BLACK}Velocidad en canales/ríos: {GOLD}{VELOCITY}
 STR_PURCHASE_INFO_RUNNINGCOST                                   :{BLACK}Coste de operación: {GOLD}{CURRENCY}/año
 STR_PURCHASE_INFO_CAPACITY                                      :{BLACK}Capacidad: {GOLD}{CARGO} {STRING}
 STR_PURCHASE_INFO_REFITTABLE                                    :(reformable)
diff --git a/src/lang/vietnamese.txt b/src/lang/vietnamese.txt
index 2f9fc916cb..157b5cc593 100644
--- a/src/lang/vietnamese.txt
+++ b/src/lang/vietnamese.txt
@@ -861,26 +861,26 @@ STR_GAME_OPTIONS_CURRENCY_UNITS_FRAME                           :{BLACK}Đơn v
 STR_GAME_OPTIONS_CURRENCY_UNITS_DROPDOWN_TOOLTIP                :{BLACK}Lựa chọn đơn vị tiền tệ
 
 ############ start of currency region
-STR_GAME_OPTIONS_CURRENCY_GBP                                   :Bảng Anh (£)
-STR_GAME_OPTIONS_CURRENCY_USD                                   :Đô-la Mỹ ($)
-STR_GAME_OPTIONS_CURRENCY_EUR                                   :Euro (€)
-STR_GAME_OPTIONS_CURRENCY_JPY                                   :Yên (¥)
+STR_GAME_OPTIONS_CURRENCY_GBP                                   :Bảng Anh (GBP)
+STR_GAME_OPTIONS_CURRENCY_USD                                   :Đô-la Mỹ (USD)
+STR_GAME_OPTIONS_CURRENCY_EUR                                   :Euro (EUR)
+STR_GAME_OPTIONS_CURRENCY_JPY                                   :Yên Nhật (JPY)
 STR_GAME_OPTIONS_CURRENCY_ATS                                   :Shilling Úc (ATS)
 STR_GAME_OPTIONS_CURRENCY_BEF                                   :Phơ-răng Bỉ (BEF)
 STR_GAME_OPTIONS_CURRENCY_CHF                                   :Phơ-răng Thụy Sỹ (CHF)
 STR_GAME_OPTIONS_CURRENCY_CZK                                   :Koruna Séc (CZK)
 STR_GAME_OPTIONS_CURRENCY_DEM                                   :Mác Đức (DEM)
 STR_GAME_OPTIONS_CURRENCY_DKK                                   :Krone Đan Mạch (DKK)
-STR_GAME_OPTIONS_CURRENCY_ESP                                   :Peseta (ESP)
+STR_GAME_OPTIONS_CURRENCY_ESP                                   :Peseta Tây Ban Nha(ESP)
 STR_GAME_OPTIONS_CURRENCY_FIM                                   :Markka Phần Lan (FIM)
-STR_GAME_OPTIONS_CURRENCY_FRF                                   :Phơ-răng (FRF)
+STR_GAME_OPTIONS_CURRENCY_FRF                                   :Franc Pháp (FRF)
 STR_GAME_OPTIONS_CURRENCY_GRD                                   :Drachma Hy Lạp (GRD)
 STR_GAME_OPTIONS_CURRENCY_HUF                                   :Forint Hungary (HUF)
 STR_GAME_OPTIONS_CURRENCY_ISK                                   :Đồng Króna (ISK)
 STR_GAME_OPTIONS_CURRENCY_ITL                                   :Lira Ý (ITL)
 STR_GAME_OPTIONS_CURRENCY_NLG                                   :Guilder Hà Lan (NLG)
 STR_GAME_OPTIONS_CURRENCY_NOK                                   :Krone Na Uy (NOK)
-STR_GAME_OPTIONS_CURRENCY_PLN                                   :Đồng Zloty (PLN)
+STR_GAME_OPTIONS_CURRENCY_PLN                                   :Zloty Phần Lan (PLN)
 STR_GAME_OPTIONS_CURRENCY_RON                                   :Leu Ru-ma-ni (RON)
 STR_GAME_OPTIONS_CURRENCY_RUR                                   :Rúp Nga (RUR)
 STR_GAME_OPTIONS_CURRENCY_SIT                                   :Slovenian Tolar (SIT)
@@ -1401,6 +1401,8 @@ STR_INTRO_TOOLTIP_ONLINE_CONTENT                                :{BLACK}Kiểm t
 STR_INTRO_TOOLTIP_AI_SETTINGS                                   :{BLACK}Hiện thị tùy chỉnh AI
 STR_INTRO_TOOLTIP_QUIT                                          :{BLACK}Thoát 'OpenTTD'
 
+STR_INTRO_TRANSLATION                                           :{BLACK}Bản dịch này thiếu {NUM} chuỗi. Hãy giúp OpenTTD hoàn thiện hơn bằng cách đăng ký làm biên dịch viên. Xem readme.txt để biết thêm chi tiết.
+
 # Quit window
 STR_QUIT_CAPTION                                                :{WHITE}Thoát
 STR_QUIT_ARE_YOU_SURE_YOU_WANT_TO_EXIT_OPENTTD                  :{YELLOW}Bạn có chắc chắn muốn thoát khỏi OpenTTD và trở lại {STRING}?
@@ -2522,6 +2524,10 @@ STR_NEWGRF_INVALID_ENGINE                                       :<sai mẫu xe>
 STR_NEWGRF_INVALID_INDUSTRYTYPE                                 :<sai nhà máy>
 
 # NewGRF scanning window
+STR_NEWGRF_SCAN_CAPTION                                         :{WHITE}Đang Quét NewGRF
+STR_NEWGRF_SCAN_MESSAGE                                         :{BLACK}Đang quét các NewGRF. Thời gian hoàn tất phụ thuộc vào số lượng hiện có...
+STR_NEWGRF_SCAN_STATUS                                          :{BLACK}Đã quét được {NUM} NewGRF trong tổng số {NUM} NewGRF dự tính
+STR_NEWGRF_SCAN_ARCHIVES                                        :Đang quét tập tin nén
 
 # Sign list window
 STR_SIGN_LIST_CAPTION                                           :{WHITE}Danh Sách Biển Hiệu - {COMMA} Biển Hiệu