Perhaps you should try some spelling variations:
wuhan china » tuan china, yunnan china
than china » tuan china, han china, can china
chin chang » china chang, chain change, china zhang
yang chin » yang chik, hang china, yang jin
chang hai » chang ha, shang hai, change has
tan yang » dan yang, tan ying, tan yong

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: (wan OR lang) yanling ((than china) OR (wuhan china)) tan yang chin chang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wan or lang) yanling ((than china) OR (wuhan china)) tan yang chin chang hai ;~".
• Adding a wildcard symbol may retrieve word variants: (wan or lang) yanling ((than china) OR (wuhan china)) tan yang chin chang hai ;*.