Perhaps you should try some spelling variations:
xiaoping zhang » xiaotong zhang
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
zhang ching » zhang ming, hang china, zhang hong
ching fein » ching wen
dang hari » dang hai
dang hadi » dang hai
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 xiaoping zhang ching fein ((fang jie) OR (yang jie)) ((dang hari) OR (dang hadi)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaoping zhang ching fein ((fang jie) or (yang jie)) ((dang hari) or (dang hadi)) ;*.