Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
china joins » china going, china jiing, china jing
china jin » china jing, china jiing, china june
jun chang » jin chang, joon chang, yuan chang
yang jun » yang jui, pang jun, yang jin
chang ha » chang mae

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 wuhan ((china jin) OR (china joins)) yang jun chang ha ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaoping wuhan ((china jin) or (china joins)) yang jun chang ha ;*.