Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
yan yuan » yan guan, fang yuan, nan yan
yuan hui » yuan fei, jaan hui, tuan hua
hui yang » hui ying, du yang, h yang
pei yun » lei kyun, mei yung, pei yang
ii long » i long, ii losung
de long » le long, de longue

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: ((yan liang) OR (yan yuan)) yuan hui ((pei yun) OR (hui yang)) ((ii long) OR (de long)) du ;~.
• Adding a wildcard symbol may retrieve word variants: ((yan liang) or (yan yuan)) yuan hui ((pei yun) or (hui yang)) ((ii long) or (de long)) du ;*.