Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, wang xiaolin, huang xiaoting
chia daun » chia lan
daun yang » dan yang, du yang, tan yang
yang mind » yang cindy, yang jin, sang minh
mind dang » mind data
dang hari » dang hai
tan chia » tuan china, than china, can china

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) OR (deng xiaoping)) tan chia daun yang mind dang hari ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang xiaoping) or (deng xiaoping)) tan chia daun yang mind dang hari ;*.