Perhaps you should try some spelling variations:
yuan cheng » yuan chang, huang cheng, yu cheng
tuan china » wuhan china, can china, taiwan china
china rene » china ren, china rate, china real
yuan kang » yuan wang, yuan chang, chan kang
wong yue » wang yue, hong yu
yang xi » yang di, yang yi, yang jui
xi wong » kie wong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yuan kang) or (yuan cheng)) tuan china rene yang xi wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yuan kang) OR (yuan cheng)) tuan china rene yang xi wong yue ;*.