Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan fang » yin fang
fang yuan » wang yuhan, wang yan, meng yuan
yuan ming » yuan ting, kian ming, tuan minh
yang jie » yang jin, yang di, yang jui
wong sam » wong sau, wong lai, kong sar
yang yi » yang di, yang jui
yang xi » 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: wang yidan fang yuan ming ((((yang jie) OR (yang yi))) OR (((yang judy) OR (yang xi)))) wong sam ;~.
• Adding a wildcard symbol may retrieve word variants: wang yidan fang yuan ming ((((yang jie) or (yang yi))) or (((yang judy) or (yang xi)))) wong sam ;*.