Perhaps you should try some spelling variations:
wang daoping » wang xiaoping, wang danning, wang xiaobing
shang hai » shang kai, dang hai, chang ha
tan chia » tuan china, than china, can china
dan yang » daun yang, tan yang, wang yang
yang jin » yang jie, yang jun, ying jin
hong hai » zhong tai, dang hai, hong tan

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 daoping ((wang hua) OR (tan chia)) dan yang jin ((hong hai) OR (shang hai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang daoping ((wang hua) or (tan chia)) dan yang jin ((hong hai) OR (shang hai)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang daoping ((wang hua) or (tan chia)) dan yang jin ((hong hai) OR (shang hai)) ;*.