Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, peng liang
than china » tuan china, han china, wuhan china
yang yang » wang yang, wang yan
yuan hui » yuan fei, jaan hui, tuan hua
pei yang » wei yang, hui yang, pei yun
yang yao » wang yan, yang yi, yang fan
long du » long d, long do, long did

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) or (yang liang)) ((yuan hui) or (than china)) pei yang yao ((long du) or (long run)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (yang liang)) ((yuan hui) OR (than china)) pei yang yao ((long du) OR (long run)) ;.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (yang liang)) ((yuan hui) or (than china)) pei yang yao ((long du) or (long run)) ;*.