Perhaps you should try some spelling variations:
wang oanh » wang yan, wang yang, wang ban
hua irene » hua ren
dang anh » duong anh
tran hua » tan hua, tuan hua, tran duc
yang jie » yang jin, yang di, yang jui
song sam » wong sam, kong sar, song so
song pae » song ze

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) OR (dang anh)) tran hua irene yang jie ((song sam) OR (song pae)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang oanh) OR (dang anh)) tran hua irene yang jie ((song sam) or (song pae)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang oanh) OR (dang anh)) tran hua irene yang jie ((song sam) or (song pae)) ;*.