Perhaps you should try some spelling variations:
yang guang » yan guan, yang liang
than china » tuan china, han china, wuhan china
yang yang » wang yang, wang yan
china hui » china hubei, china how, china has
yang jui » yang judy, yang di, yang yi
yang xi » yang di, yang yi
long du » long d, long run, long did
long do » long d, longer do, 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: ((yang yang) OR (yang guang)) than china hui ((yang jui) OR (yang xi)) ((long du) OR (long do)) ;~.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (yang guang)) than china hui ((yang jui) or (yang xi)) ((long du) or (long do)) ;*.