Perhaps you should try some spelling variations:
long chemin » long chain
fang yuan » wang yuhan, wang yan, meng yuan
yuan when » yuan cheng, can when
when you » when do
you gain » you can
yang jun » yang jui, pang jun, yang jin
yang xi » yang jui
yang yi » yang jui

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: fang yuan when you gain ((((((yang jun) OR (yang xi))) OR (yang yi))) OR (yang di)) long chemin ;~.
• Adding a wildcard symbol may retrieve word variants: fang yuan when you gain ((((((yang jun) or (yang xi))) or (yang yi))) or (yang di)) long chemin ;*.