Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
sang minh » kang minah, anh minh, song min
wong shiu » wong siu, cong shu, song shin
yang lin » yang jin, wang lin, yang li
yang jie » yang jin, yang di, yang jui
wong sam » wong sau, wong lai, kong sar
xu sang » du sang, xu gang

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 yong ((yang lin) OR (yang jie)) xu sang minh ((wong sam) OR (wong shiu)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yong ((yang lin) or (yang jie)) xu sang minh ((wong sam) or (wong shiu)) ;*.