Perhaps you should try some spelling variations:
guan juan » huang juan, san juan, quan guan
juan rene » juan meng, juan rana
qing gan » ring gai, xing gao
gan guan » yan guan, quan guan, fan guon
pang jiu » pang jun, yang jin, pan ji
yang jie » yang jin, yang jui, yang xi
yan jiu » yang jin

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

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