Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
china won » china women, china wang, china who
wing yan » wang yan, wing ian, wing tan
yan tuan » yan guan, yan yuan, anh tuan
yang jui » yang judy, yang xi, yang yi
ein fach » im fach, von fach
wong siu » wong shiu, kong siu, wong sau
von sam » von sa, von sap, von scham

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: wing yan tuan china won ((yang jui) OR (yang di)) ((((ein fach) OR (von sam))) OR (wong siu)) ;~.
• Adding a wildcard symbol may retrieve word variants: wing yan tuan china won ((yang jui) or (yang di)) ((((ein fach) or (von sam))) or (wong siu)) ;*.