Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
kang chen » chang chen, jane chen, kang han
yan wang » yuan wang, qian wang, yan liang
ying jin » yang jin, jing ji, yang jie
wong siu » wong shiu, kong siu, wong sau
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: nan ((yan wang) OR (yang yang)) kang chen ((((yang xi) OR (yang yi))) OR (ying jin)) wong siu ;~.
• Adding a wildcard symbol may retrieve word variants: nan ((yan wang) or (yang yang)) kang chen ((((yang xi) or (yang yi))) or (ying jin)) wong siu ;*.