Perhaps you should try some spelling variations:
den xiaoping » deng xiaoping, wang xiaoping, _ xiaoping
xiaoping tan » xiaoyang tang, xiaojing a, xiaoping _
tan chia » tuan china, than china, can china
chia wen » china won, ching wen, asia wen
wen yang » wei yang, wen wang, chen yang
yang von » yang fan, yang jin, yang jun
von data » loan data, von daten, von daf

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: den xiaoping tan chia wen yang von data (hai OR hari) ;~.
• Adding a wildcard symbol may retrieve word variants: den xiaoping tan chia wen yang von data (hai or hari) ;*.