Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
xiaoping than » xiaoping how, xiaoping shi
than china » tuan china, han china, wuhan china
von yang » dong yang, von langs, dan yang
von wang » von wall, von wald, wen wang
di dang » di dante, duc dang

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 than china ((von yang) OR (von wang)) di dang (hai OR haji) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang xiaoping than china ((von yang) OR (von wang)) di dang (hai or haji) ;~".
• Adding a wildcard symbol may retrieve word variants: wang xiaoping than china ((von yang) OR (von wang)) di dang (hai or haji) ;*.