How do you say this in Vietnamese? お疲れ様です

See a translation

Cám ơn cho công việc tốt

Vất vả cho bạn rồi!

@tram21:@Mingchieh: Các anh chị cho hỏi câu này trong tiếng Anh nghĩa gì ?

There's no correct translation for this, but I like @frehn version; it sounds very natural, and in fact, Vietnamese people use "vất vả cho bạn rồi!" a lot in work settings or after finishing a project.
@ZivLim in English, it would be something like "Thank you for your hard work"

@yuheetran: I've looked up the sentence in Japanese and I found that it is only used when the superior is talking to the inferior. Does this apply to Vietnamese too?

@ZivLim actually, it's not when the superior is talking to the inferior but almost all the time is the other way around. I have lots of Japanese friends, and they always say 「お疲れ様です」 to their friends (who are older) when they finish their school day. I literally think you can use it with both the superior and the inferior (to your boss, co-workers, ect..). I did hear from my friend saying that if you hear it from your friends (and 'friends' here I meant friends who are quite close to you), it sounds weird.

About this phrase in Vietnamese, again, there is no correct translation for that phrase. All of my Japanese friends/Japanese teachers said this phrase is hard to have all of its meanings translated, but the phrase itself can be understood as "thank you for your hard work"
I would say we use "vất vả cho bạn rồi" with anyone too, and it depends a lot on the context, and who are talking to. For example "vất vả cho bạn rồi" cannot be used when you talk with your boss, because the subject "bạn" refers to a friend/a person you know but it's absolutely not for your boss (in terms of the subject)