Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
xiaoping can » mapping can, xiaojing a, xiaoping _
yang cindy » yang mind
china due » china does, china den
dang haji » dang hai, dato haji
yang jin » yang jie, yang jun, ying jin

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 can ((china due) OR (china des)) ((yang jin) OR (yang cindy)) dang haji ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaoping can ((china due) or (china des)) ((yang jin) or (yang cindy)) dang haji ;*.