Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
khan sher » han shen, khan syed, than she
chan ming » kian ming, chan eng, chan fong
chang yun » chong yun, chang hsun, chae yun
yang dan » yang dean, yang fan, wang dan
yun hong » yun song, yun young, hyun song
hong yu » wong yue

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang dan ((khan sher) or (chan ming)) chang yun hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang dan ((khan sher) OR (chan ming)) chang yun hong yu ;*.