Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
dan china » can china, han china, dan china's
tan yang » dan yang, tan ying, tan yong
yang jin » yang jie, yang jun, ying jin
song hai » shang hai, dang hai, long han
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 ((dan china) OR (tuan china)) tan yang jin ((song hai) OR (hong hai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yanling ((dan china) or (tuan china)) tan yang jin ((song hai) OR (hong hai)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yanling ((dan china) or (tuan china)) tan yang jin ((song hai) OR (hong hai)) ;*.