Perhaps you should try some spelling variations:
wuhan china » yunnan china
tuan china » can china, taiwan china, yunnan china
dan yang » daun yang, tan yang, wang yang
yang lin » yang jin, wang lin, yang li
hong tai » zhong tai, hong tan, long tail
hong hai » shang hai, zhong tai, dang hai
wang » wing, wan, lang

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 yanling ((tuan china) OR (wuhan china)) dan yang lin ((hong tai) OR (hong hai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yanling ((tuan china) or (wuhan china)) dan yang lin ((hong tai) OR (hong hai)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yanling ((tuan china) or (wuhan china)) dan yang lin ((hong tai) OR (hong hai)) ;*.