Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
yan liang » yang liang, wang liang, you liang
longer do » longer _, longer a
jaan hui » yuan hui
pei yang » wei yang, hui yang, pei yun
yang xi » yang di, yang yi, yang jui
long do » long d, long du, long ago

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 (yang guang)) jaan hui pei yang xi ((long do) OR (longer do)) ;~.
• Adding a wildcard symbol may retrieve word variants: ((yan liang) or (yang guang)) jaan hui pei yang xi ((long do) or (longer do)) ;*.