Perhaps you should try some spelling variations:
hua irene » hua ren
yang john » young john, king john, yang jin
john wong » john song, john bonn
wang anh » dang anh, wang yang, wang yan
anh tuan » anh tran, dinh tuan, oanh tran
hua chen » jui chen, yu chen, a chen
wong sam » wong sau, wong lai, kong sar

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang anh tuan ((hua irene) or (hua chen)) yang john wong sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang anh tuan ((hua irene) OR (hua chen)) yang john wong sam ;*.