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 teil, china stemming
china step » china sleep, china sea, china shen
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) OR (china step)) ((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) OR (china step)) ((wang jie) OR (yang jin)) dang hari ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang xiaoping than ((china stein) OR (china step)) ((wang jie) or (yang jin)) dang hari ;*".