Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
xiaoping tan » xiaoyang tang, xiaojing a, xiaoping _
tan chia » tuan china, than china, can china
chia wei » chia wen, chen wei, hua wei
wei yang » pei yang, wei wang, wei yang's
jin data » main data, own data, can data
von data » loan data, von daten, von daf

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 wei yang ((jin data) OR (von data)) (hai or hari) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang xiaoping tan chia wei yang ((jin data) OR (von data)) (hai OR hari) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang xiaoping tan chia wei yang ((jin data) OR (von data)) (hai or hari) ;*".