Perhaps you should try some spelling variations:
wang oanh » wang yan, wang yang, dang anh
oanh tran » anh tran, anh tuan, binh tran
dai irene » david irene
tran dai » tran dat, tran thi, tran nam
yang jun » pang jun, yang jin, yang judy
yang jui » yang judy, yang di, yang xi
song ze » song new, song pae
sar » sara, star, saur

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: wang oanh tran dai irene ((yang jun) OR (yang jui)) ((song ze) OR (kong sar)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang oanh tran dai irene ((yang jun) or (yang jui)) ((song ze) or (kong sar)) ;*.