Perhaps you should try some spelling variations:
than china » tuan china, han china, wuhan china
yan liang » yang liang, wang liang, you liang
wang yang » wang liang, wang yanling
china hui » china hubei, china how, china has
hui yang » hui ying, du yang, h yang
yang ka » yang fan, yang yao
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.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((yan liang) or (wang yan))) or (wang yang)) than china hui yang ka ((long du) or (long do)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yan liang) OR (wang yan))) OR (wang yang)) than china hui yang ka ((long du) OR (long do)) ;*.