Perhaps you should try some spelling variations:
cheng yuan » cheng guan, cheng han, chen yulan
yang yang » wang yang, wang yan
wing yan » wang yan, wing ian, wing tan
yang yun » yang jun, tang yun, yang yue
yang jui » yang judy, yang di, yang yi
yuan kai » yuan kang, yuan fei, tan kai
kai hong » bai chong, hai phong, wai hoong
hong sau » wong sau, hong paul, kong sar
yang xi » yang di, yang yi

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing yan ((((yang yun) or (yang yang))) or (((yang jui) OR (yang xi)))) cheng yuan kai hong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing yan ((((yang yun) OR (yang yang))) OR (((yang jui) OR (yang xi)))) cheng yuan kai hong sau ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing yan ((((yang yun) or (yang yang))) or (((yang jui) OR (yang xi)))) cheng yuan kai hong sau ;*".