Perhaps you should try some spelling variations:
yan yuan » yan guan, fang yuan, nan yan
hua rene » hua ren, juan rene
tang tin » tang tang, ting ting, tang li
tang min » chang min, sang minh, yang mind
hong shu » cong shu, tong shui, wong shiu
yan yan » nan yan, yang yang, wang yan
wang » wing, lang

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

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