Perhaps you should try some spelling variations:
wang daoping » wang xiaoping, wang danning, wang xiaobing
yang cindy » yang mind
tan chia » tuan china, than china, can china
chia tan » chia lan, chen tan, chia wen
tan yang » dan yang, tan ying, tan yong
dang » dan, lang, dans
hai » hadi, haji, hari

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 daoping) OR (wang xiaodong)) tan chia tan yang cindy dang hai ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang daoping) or (wang xiaodong)) tan chia tan yang cindy dang hai ;*.