Perhaps you should try some spelling variations:
wang daoping » wang xiaoping, wang danning, wang xiaobing
than china » han china, wuhan china, can china
tuan china » wuhan china, can china, taiwan china
dan yang » daun yang, tan yang, wang yang
yang jin » yang jie, yang jun, ying jin
jin data » main data, own data, von data
data hai » data hub, data how, data hob

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang daoping ((than china) or (tuan china)) dan yang jin data hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang daoping ((than china) OR (tuan china)) dan yang jin data hai ;*.