Perhaps you should try some spelling variations:
wang xiaobing » wang xiaoping, wang xiaodong, wang xiaolin
xiaobing tan » xiaoyang tang, xiaojing a
yang cindy » yang mind
tan chia » tuan china, than china, can china
chia wen » china won, ching wen, asia wen
wen yang » wei yang, wen wang, chen yang
hai » hadi, haji, thai

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