Perhaps you should try some spelling variations:
yuan cheng » yuan chang, huang cheng, yu cheng
tuan china » wuhan china, can china, taiwan china
wang yang » wang yan, wang liang, wang yanling
tong shui » tong hui, cong shu
long han » long chain, long thanh, long haul
wen wang » wei wang, chen wang, weng fang
gong hui » tong hui, wang hui, gong si

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

• Performing a fuzzy search may retrieve terms with similar spellings: long han ((yuan cheng) or (tuan china)) wen wang yang ((tong shui) or (gong hui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: long han ((yuan cheng) OR (tuan china)) wen wang yang ((tong shui) OR (gong hui)) ;.
• Adding a wildcard symbol may retrieve word variants: long han ((yuan cheng) or (tuan china)) wen wang yang ((tong shui) or (gong hui)) ;*.