Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
china shen » china chen, china stein, china sea
zhang yan » zhang fan, zhang jian, wang yan
yan tuan » yan guan, yan yuan, anh tuan
yang jui » yang judy, yang yi
yang jie » yang jin, yang yi, yang jun
yang xi » yang yi
shin » skin, sein, thin

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: zhang yan tuan china shen ((((yang jui) OR (yang di))) OR (((yang jie) OR (yang xi)))) song shin ;~.
• Adding a wildcard symbol may retrieve word variants: zhang yan tuan china shen ((((yang jui) or (yang di))) or (((yang jie) or (yang xi)))) song shin ;*.