Perhaps you should try some spelling variations:
wang yangming » wang yangming's, wang yanling, wang danning
wuhan china » tuan china, yunnan china
than china » tuan china, han china, can china
change has » change hands, change heat, change how
chang hai » chang ha, shang hai, dang hai
dan yang » daun yang, tan yang, wang yang
yang jun » yang jui, pang jun, yang jin

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 yangming ((than china) OR (wuhan china)) dan yang jun ((chang hai) OR (change has)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yangming ((than china) or (wuhan china)) dan yang jun ((chang hai) OR (change has)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yangming ((than china) or (wuhan china)) dan yang jun ((chang hai) OR (change has)) ;*.