Perhaps you should try some spelling variations:
yihan guan » yan guan
yan yihan » yan yuan
guan rene » juan rene, glas rene
dong sind » dong sin, dong bin, dong ping
wing yan » wang yan, wing ian, wing tan
yang jie » yang jin, yang xi, yang yi
yang jui » yang judy, yang xi, yang yi

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: wing yan yihan guan rene ((((yang jie) OR (yang jui))) OR (yang di)) ((cong shu) OR (dong sind)) ;~.
• Adding a wildcard symbol may retrieve word variants: wing yan yihan guan rene ((((yang jie) or (yang jui))) or (yang di)) ((cong shu) or (dong sind)) ;*.