Perhaps you should try some spelling variations:
wang xiaoping » deng xiaoping, wang xiaolin, huang xiaoting
tuan china » wuhan china, can china, taiwan china
yang cindy » yang mind
china due » china does, china des, china den
yang jin » yang jie, yang jun, ying jin
dato » data
haji » hadi

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) OR (wang xiaodong)) tuan china due ((yang jin) OR (yang cindy)) dato haji ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang xiaoping) OR (wang xiaodong)) tuan china due ((yang jin) or (yang cindy)) dato haji ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang xiaoping) OR (wang xiaodong)) tuan china due ((yang jin) or (yang cindy)) dato haji ;*.