Perhaps you should try some spelling variations:
wang xiaotong » wang xiaodong, wang xianodong, wang xiaoping
xiaotong hang » xiaotong zhang, xiaodong huang, xiaoyang tang
hang china » han china, change china, ghana china
china wen » chia wen, china won, ching wen
dang hari » dang hai
yang jin » yang jie, yang jun, ying jin

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 xiaotong hang china wen ((yang jin) OR (fang ke)) dang hari ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaotong hang china wen ((yang jin) or (fang ke)) dang hari ;*.