Perhaps you should try some spelling variations:
yan yuan » yan guan, fang yuan, nan yan
tuan hua » tan hua, yuan hui
pei yang » wei yang, hui yang, pei yun
long ago » long arm
wan yan » wang yan, nan yan, wai yan
tuan vu » thanh vu
long du » long d, long do, long run
yang i » yang di, 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: ((wan yan) OR (yan yuan)) ((tuan hua) OR (tuan vu)) pei yang i ((long ago) OR (long du)) ;~.
• Adding a wildcard symbol may retrieve word variants: ((wan yan) or (yan yuan)) ((tuan hua) or (tuan vu)) pei yang i ((long ago) or (long du)) ;*.