Perhaps you should try some spelling variations:
yunnan china » urban china, wuhan china, yunnan sheng
tuan china » wuhan china, can china, taiwan china
tan yang » dan yang, tan ying, tan yong
zong hai » dang hai, long han, zong he
hong hai » shang hai, zhong tai, dang hai
yang li » yang lin, yang di, yang xi
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 yan ((yunnan china) OR (tuan china)) tan yang li ((zong hai) OR (hong hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yan ((yunnan china) or (tuan china)) tan yang li ((zong hai) or (hong hai)) ;*.