Perhaps you should try some spelling variations:
yuan wang » yan wang, yuan kang, yuan chang
tan china » tuan china, than china, can china
china ren » china loren, china real, china reza
wang tan » wang yan, wang ban, wang dan
ren yang » ren yan, chen yang, dan yang
wong yue » wang yue
yang xi » yang di, yang yi, yang jui

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: yuan wang tan china ren yang xi ((hong yu) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan wang tan china ren yang xi ((hong yu) OR (wong yue)) ;.
• Adding a wildcard symbol may retrieve word variants: yuan wang tan china ren yang xi ((hong yu) or (wong yue)) ;*.