Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
wong shiu » wong siu, cong shu, song shin
yao yang » yang yang
wang yao » wang yan, yang yao, gang yao
kang min » tang min, kang minah, kyung min
wong sam » wong sau, wong lai, kong sar
kan min » han min, kian ming, kyaw min
yang li » yang lin, yang di, yang xi
li li » li lin, li l, li lu

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 yao yang li li ((((kang min) OR (sang minh))) OR (kan min)) ((wong shiu) OR (wong sam)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yao yang li li ((((kang min) or (sang minh))) or (kan min)) ((wong shiu) or (wong sam)) ;*.