Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
tan cheng » tang zheng, yuan cheng, tan hong
long han » long chain, long thanh, long haul
wen wang » wei wang, chen wang, weng fang
wang jie » yang jie, tang jie, wang jing
wang hui » wang hua, wang zhi, wang wei
gong hui » tong hui, tong shui, 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 ((tan cheng) or (tuan china)) wen wang jie ((wang hui) or (gong hui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: long han ((tan cheng) OR (tuan china)) wen wang jie ((wang hui) OR (gong hui)) ;.
• Adding a wildcard symbol may retrieve word variants: long han ((tan cheng) or (tuan china)) wen wang jie ((wang hui) or (gong hui)) ;*.