Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
yong yan » yang yang, dong yang, ying yang
ren tang » en tant, ren weng
hong shu » cong shu, tong shui, wong shiu
hong ghi » zhong zhi, hong g, hong hai
hong yu » wong yue
yan di » yang di, pan di, yan zi

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 di ((ren tang) OR (ren yan)) li ((((hong shu) or (hong ghi))) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong yan di ((ren tang) OR (ren yan)) li ((((hong shu) OR (hong ghi))) OR (hong yu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong yan di ((ren tang) OR (ren yan)) li ((((hong shu) or (hong ghi))) or (hong yu)) ;".
• Adding a wildcard symbol may retrieve word variants: wang yong yan di ((ren tang) OR (ren yan)) li ((((hong shu) or (hong ghi))) or (hong yu)) ;*.