Does anyone know what this means????

nhuc dau wa

cheers

my viet friend thinks its funny to talk to me in vietnamese
i have no idea what he is on about
help me please
Đã không còn người yêu hỡi,
ngày xưa ấy đôi ta bên nhau không rời
Đời giông bão nhiều đắng cay, cuốn trôi mau biết đâu tình nồng !!!

can anyone tell me what this means

I get 25 extra bonus points if I can find out what this means in Vietnamese.
Dumo may condae dungoo.

During the first Russian Roulette scene (going to try to give nothing away) one man has a gun to his head and a soldier keeps striking him and yelling "MAO!"* repeatedly. Any Vietnamese/French speakers know what this means? (I say French as well, because it's widely spoken over there due to the French occupation of the country before the war.)

* "MAO" is pronounced just like it's spelled...as in Mao Zedong.
Bueller...?