Perhaps you should try some spelling variations:
clan yuan » yan yuan
yuan ming » yuan ting, kian ming, tuan minh
yan clan » das clan, yan guan, yan yuan
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang di, yang xi
wong sau » wong siu, wong shiu, wong lai
wong sam » wong lai, kong sar, von sam

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: (wing OR lang) yan clan yuan ming ((yang jin) OR (yang jui)) ((wong sau) OR (wong sam)) ;~.
• Adding a wildcard symbol may retrieve word variants: (wing or lang) yan clan yuan ming ((yang jin) or (yang jui)) ((wong sau) or (wong sam)) ;*.