Perhaps you should try some spelling variations:
den xiaoping » deng xiaoping, wang xiaoping, _ xiaoping
xiaoping tan » xiaoyang tang, xiaojing a, xiaoping _
tan chen » tan cheng, ta chen, jane chen
chen wei » zhen wei, chen e
wei ying » wei ming, wei yang, wei yiming
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: den xiaoping tan chen wei ying ((jin data) OR (von data)) (hai or hari) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: den xiaoping tan chen wei ying ((jin data) OR (von data)) (hai OR hari) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "den xiaoping tan chen wei ying ((jin data) OR (von data)) (hai or hari) ;*".