Perhaps you should try some spelling variations:
wuhan china » tuan china, yunnan china
china data » china update, chinese data
yan wuhan » yan guan, yan yuan
data yang » apa yang
shang hai » shang kai, chang ha, hong hai
yang lin » yang jin, wang lin, yang li
wan yan » wang yan, nan yan, wai yan

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 yan wuhan china data yang lin ((hong tan) OR (((shang hai) OR (dang hai)))) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan wuhan china data yang lin ((hong tan) or (((shang hai) OR (dang hai)))) ;~".
• Adding a wildcard symbol may retrieve word variants: wan yan wuhan china data yang lin ((hong tan) or (((shang hai) OR (dang hai)))) ;*.