Perhaps you should try some spelling variations:
yuan chen » yuan cheng, yun chen, sudan chen
juan rene » juan meng, juan rana
chen tan » chen tain, chen yang, chen jian
hua rene » hua ren
yang jun » pang jun, yang jin, yang judy
yang jui » yang judy, yang di, yang xi
hong yu » wong yue

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

• Performing a fuzzy search may retrieve terms with similar spellings: yuan chen tan ((hua rene) OR (juan rene)) ((yang jun) or (yang jui)) hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan chen tan ((hua rene) OR (juan rene)) ((yang jun) OR (yang jui)) hong yu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yuan chen tan ((hua rene) OR (juan rene)) ((yang jun) or (yang jui)) hong yu ;".
• Adding a wildcard symbol may retrieve word variants: yuan chen tan ((hua rene) OR (juan rene)) ((yang jun) or (yang jui)) hong yu ;*.