Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, peng liang
yang yang » wang yang, wang yan
yuan hui » yuan fei, jaan hui, tuan hua
yang y.c » yang yao, yang 4.3, yang yue
hui wei » hua wei
yang yi » yang di, yang xi, yang jui
long du » long do, long run, long did
long d » long do, long _, long 2

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang liang) or (yang yang)) yuan hui wei ((yang y.c) OR (yang yi)) ((long d) or (long du)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang liang) OR (yang yang)) yuan hui wei ((yang y.c) OR (yang yi)) ((long d) OR (long du)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang liang) or (yang yang)) yuan hui wei ((yang y.c) OR (yang yi)) ((long d) or (long du)) ;*".