Perhaps you should try some spelling variations:
cheng yuan » cheng guan, cheng han, chen yulan
chong paul » hong paul, chan paul
yang yang » wang yang
bai chong » lai chung, wai chung, hai phong
yang yun » yang jun, tang yun, yang yue
yuan bai » yuan kai, yuan fei, yuan hui
wai yan » wei yang
yang yi » yang di, yang xi, yang jui
wang » wing, wan, lang

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 yan) OR (wai yan)) ((((yang yun) OR (yang yang))) OR (yang yi)) cheng yuan bai chong paul ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang yan) or (wai yan)) ((((yang yun) or (yang yang))) or (yang yi)) cheng yuan bai chong paul ;*.