Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
china tan » china top, china two, china taiwan
zhong tai » hong tan, hong hai, zhong zhi
shang hai » shang kai, dang hai, chang ha
wang anh » dang anh, wang yang, wang yan
anh tuan » anh tran, dinh tuan, oanh tran
tan yang » dan yang, tan ying, tan yong
yang lin » yang jin, wang lin, yang li

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: wang anh tuan china tan yang lin ((zhong tai) OR (shang hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang anh tuan china tan yang lin ((zhong tai) or (shang hai)) ;*.