Perhaps you should try some spelling variations:
guan juan » huang juan, san juan, quan guan
juan rene » juan meng, juan rana
wing yan » wang yan, wing ian, wing tan
yan guan » gan guan, yan yuan, yang guang
yang jie » yang jin, yang di, yang jui
yan jiu » yang jin, pang jiu
yang yi » yang di, yang xi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing yan guan juan rene ((((yan jiu) or (yang jie))) or (yang yi)) cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing yan guan juan rene ((((yan jiu) OR (yang jie))) OR (yang yi)) cong shu ;.
• Adding a wildcard symbol may retrieve word variants: wing yan guan juan rene ((((yan jiu) or (yang jie))) or (yang yi)) cong shu ;*.