Perhaps you should try some spelling variations:
wang xiaoyi » wang xiaolin, wang xiaozu, wang xiaoping
xiaoyi yang » xiao yang
chang minh » chang min, zhang ming, sang minh
khan shen » han shen, khan syed, than she
khan sher » han shen, khan syed, than she
chan ming » kian ming, chan eng, chan fong

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 xiaoyi yang ((khan shen) OR (khan sher)) ((chang minh) OR (chan ming)) cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaoyi yang ((khan shen) or (khan sher)) ((chang minh) or (chan ming)) cong shu ;*.