Perhaps you should try some spelling variations:
wang xiaolin » wang xiaoping, wang xiaodong, wang lianqin
wang jianbin » wang lianqin, wang jinxia
than china » tuan china, han china, wuhan china
china data » china update, chinese data
sang minh » anh minh, song min, song ming
dang hadi » 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 xiaolin) OR (wang jianbin)) than china data ((kang minah) OR (sang minh)) dang hadi ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang xiaolin) or (wang jianbin)) than china data ((kang minah) or (sang minh)) dang hadi ;*.