Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
han china » hang china, than china, can china
tan chia » tuan china, than china, can china
wei yang » pei yang, wei wang, wei yang's
yang jin » yang jie, yang jun, ying jin
jin data » main data, own data, von data

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

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