Perhaps you should try some spelling variations:
wuhan china » tuan china, yunnan china
yan wuhan » yan guan, yan yuan
china tan » china top, china two, china taiwan
shang hai » shang kai, dang hai, chang ha
tan yang » dan yang, tan ying, tan yong
yang jin » yang jie, yang jun, ying jin
wan yan » wang yan, nan yan, wai yan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan wuhan china tan yang jin ((hong tan) or (shang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan wuhan china tan yang jin ((hong tan) OR (shang hai)) ;*.