Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
hua rene » hua ren, juan rene
yang jie » yang di, yang jui, yang xi
yang jin » yang jun, ying jin, shang jin
wong sau » wong sam, wong siu, wong shiu
yan yan » yan yuan, nan yan, wang yan
wang » wing, lang

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 OR wan) ((yan yan) OR (yang yang)) hua rene ((yang jie) OR (yang jin)) wong sau ;~.
• Adding a wildcard symbol may retrieve word variants: (wang or wan) ((yan yan) or (yang yang)) hua rene ((yang jie) or (yang jin)) wong sau ;*.