Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
xiaoping than » xiaoping how, xiaoping shi
than china » tuan china, han china, wuhan china
adam yang » awam yang, saham yang, apa yang
yang yang » wang yang, wang yan
tan yang » dan yang, tan ying, tan yong
hong hai » shang hai, zhong tai, dang hai

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 than china ((((adam yang) OR (yang yang))) OR (tan yang)) tan hong hai ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaoping than china ((((adam yang) or (yang yang))) or (tan yang)) tan hong hai ;*.