Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
xiaoping than » xiaoping how, xiaoping shi
china stein » china shen, china step, china teil
than china » tuan china, han china, wuhan china
dang hari » dang hai
wang jie » yang jie, tang jie, wang jing
yang jin » yang jie, yang jun, ying jin

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang xiaoping than china stein ((wang jie) or (yang jin)) dang hari ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang xiaoping than china stein ((wang jie) OR (yang jin)) dang hari ;*.