Perhaps you should try some spelling variations:
xiaodong han » xiaodong huang, xiaotong zhang, xiaodong yu
han china » hang china, than china, can china
china wen » chia wen, china won, ching wen
wang jing » wang ning, wang liang, wang yong
wang yang » wang yan, wang liang, wang yanling
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 xiaodong han china wen ((wang jing) OR (wang yang)) dang hadi ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaodong han china wen ((wang jing) or (wang yang)) dang hadi ;*.