Perhaps you should try some spelling variations:
wang xiaojing » wang xiaoping, wang xiaobing, wang xiaodong
xiaojing a » xiaoping _, xiaojing part
china dan » china data, china des, china due
china den » chinas den, china des, china does
dana rich » land rich
data rich » data which, data right, data race
data hari » data sharing

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