Perhaps you should try some spelling variations:
wang xiaojing » wang xiaoping, wang xiaodong, wang xiaolin
wang xiaobing » wang xiaoping, wang xiaodong, wang xiaolin
part china » parks china, east china, hurt china
china dan » china den, china data, china des
sang minh » kang minah, song min, song ming
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) OR (wang xiaobing)) part china dan ((sang minh) OR (anh minh)) data hari ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang xiaojing) OR (wang xiaobing)) part china dan ((sang minh) or (anh minh)) data hari ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang xiaojing) OR (wang xiaobing)) part china dan ((sang minh) or (anh minh)) data hari ;*.