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 kai » shang hai
hong kim » yong kim, hyung kim, hong il
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.

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