Perhaps you should try some spelling variations:
wang xiaotong » wang xianodong, wang xiaoping, wang xiaobing
change hong » change long, change among, change how
dang hari » dang hai
hong wen » hong een, ching wen, chong wan
fang jie » tang jie, fang ke, yang jin
yang jie » yang jin, yang di, yang jui

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) OR (wang xiaodong)) change hong wen ((fang jie) OR (yang jie)) dang hari ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang xiaotong) or (wang xiaodong)) change hong wen ((fang jie) or (yang jie)) dang hari ;*.