Perhaps you should try some spelling variations:
dung xiaoping » deng xiaoping, wang xiaoping, huang xiaoting
xiaoping tuan » xinping guan
tuan china » wuhan china, can china, taiwan china
china two » china's two, china top
yang fund » yang jun, yang mind, yang yun
yang fan » zhang fan, yang dean, yang yang

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: dung xiaoping tuan china two ((yang fund) OR (yang fan)) data (hai OR hari) ;~.
• Adding a wildcard symbol may retrieve word variants: dung xiaoping tuan china two ((yang fund) or (yang fan)) data (hai or hari) ;*.