Perhaps you should try some spelling variations:
wang oanh » wang yan, wang yang, dang anh
oanh tuan » anh tuan, oanh tran, anh tran
john wong » john song, john bonn
tuan hua » tan hua, tuan vu, yuan hui
ren king » oven king
ren weng » den weg
wong sau » wong sam, wong siu, wong shiu

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang oanh tuan hua ((ren king) or (ren weng)) john wong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang oanh tuan hua ((ren king) OR (ren weng)) john wong sau ;.
• Adding a wildcard symbol may retrieve word variants: wang oanh tuan hua ((ren king) or (ren weng)) john wong sau ;*.