Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yan yang » yao yang, dan yang, tan yang
hua rene » hua ren, juan rene
yang jun » yang jui, pang jun, yang jin
long shu » cong shu, tong shui, long du
yan jiu » yang jie, yang jin, pang jiu
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yan yang) OR (yang yang)) hua rene ((yan jiu) or (yang jun)) long shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan yang) OR (yang yang)) hua rene ((yan jiu) OR (yang jun)) long shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan yang) OR (yang yang)) hua rene ((yan jiu) or (yang jun)) long shu ;".
• Adding a wildcard symbol may retrieve word variants: wang ((yan yang) OR (yang yang)) hua rene ((yan jiu) or (yang jun)) long shu ;*.