Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
xiaoping tan » xiaoyang tang, xiaojing a, xiaoping _
chen wang » chen yang, chen rong, chen ping
zhang wei » zhen wei
wang min » tang min, wang lin, wang qin
ah chen » a chen, goh chen, zhe chen
tan ah » tan kah, tan bh

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: wang xiaoping tan ah chen wang min ((dang hai) OR (zhang wei)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaoping tan ah chen wang min ((dang hai) or (zhang wei)) ;*.