Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
juan rene » juan meng, juan rana
ying jin » yang jin, jing ji, yang jie
wong sau » wong sam, wong siu, wong shiu
yan yan » yan yuan, nan yan, wang yan
yang xi » yang di, yang jui
yang yi » yang di, yang jui

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: lang ((yan yan) OR (yang yang)) juan rene ((ying jin) OR (((yang xi) OR (yang yi)))) wong sau ;~.
• Adding a wildcard symbol may retrieve word variants: lang ((yan yan) or (yang yang)) juan rene ((ying jin) or (((yang xi) or (yang yi)))) wong sau ;*.