Perhaps you should try some spelling variations:
wuhan china » tuan china, yunnan china
gain yang » dan yang, daun yang, tan yang
shang hai » shang kai, dang hai, hong hai
yang hao » yang yao, dang hai, yang fan
chang ha » chang mae
tan hua » tuan hua, wang hua, tan chia
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 ((tan hua) OR (wuhan china)) gain yang hao ((shang hai) OR (chang ha)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan ((tan hua) or (wuhan china)) gain yang hao ((shang hai) OR (chang ha)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan ((tan hua) or (wuhan china)) gain yang hao ((shang hai) OR (chang ha)) ;*.