Perhaps you should try some spelling variations:
wang xiaojing » wang xiaobing, wang xiaodong, wang xiaolin
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
daun yang » dan yang, du yang, tan yang
rich data » which data, fish data
dan data » can data, dan dana, dn data
3 china » 2 china, 4 china, 3 china's

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 xiaojing) OR (wang xiaoping)) 3 china ((daun yang) OR (dan data)) rich data sharing ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang xiaojing) OR (wang xiaoping)) 3 china ((daun yang) or (dan data)) rich data sharing ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang xiaojing) OR (wang xiaoping)) 3 china ((daun yang) or (dan data)) rich data sharing ;*.