Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
juan rene » juan meng, juan rana
yong yan » dong yang, ying yang, yong yoon
hua rene » hua ren
yang jin » yang jie, yang jun, ying jin
long shu » cong shu, tong shui, long du
yan jiu » yang jie, pang jiu

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

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