Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
tuan china » wuhan china, can china, taiwan china
wang yang » wang yan, wang liang, wang yanling
yuan hui » yuan fei, jaan hui, tuan hua
pei yang » wei yang, hui yang, pei yun
yang yao » yang yang, wang yan, yang yi
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: ((wang yang) or (yang liang)) ((yuan hui) or (tuan china)) pei yang yao ((long du) or (long run)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (yang liang)) ((yuan hui) OR (tuan china)) pei yang yao ((long du) OR (long run)) ;.
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (yang liang)) ((yuan hui) or (tuan china)) pei yang yao ((long du) or (long run)) ;*.