Perhaps you should try some spelling variations:
zheng china » hang china, when china, zhejiang china
leung wang » leung tang
wang zheng » tang zheng, wang zhenpo, fang sheng
china won » china women, china wang, china who
yang jin » yang jie, yang jun, ying jin
tong hui » wang hui
yang xi » yang di, 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: leung wang zheng china won ((yang jin) OR (yang xi)) tong hui ;~.
• Adding a wildcard symbol may retrieve word variants: leung wang zheng china won ((yang jin) or (yang xi)) tong hui ;*.