Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
ping john » king john, kong john, wong john
john song » john wong, john bonn, john ngosong
song thin » song shin, song jin, song min
hui ping » hui ying, chui ling, hui sin
wan yan » wang yan, nan yan, wai yan
hong ng » hong kong, hong jong, hong hong
yang xi » yang yi, 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: ((((wan yan) OR (hong ng))) OR (yang yang)) ((yang xi) OR (yang di)) hui ping john song thin ;~.
• Adding a wildcard symbol may retrieve word variants: ((((wan yan) or (hong ng))) or (yang yang)) ((yang xi) or (yang di)) hui ping john song thin ;*.