Perhaps you should try some spelling variations:
yang guang » yan guan, yang liang
fang yuan » wang yuhan, wang yan, meng yuan
yang yang » wang yang, wang yan
chen chan » chen chuan, cheung chan, chen chung
know your » grow your
chan how » chain how, change how, chains how
how know » now known, you know, do know
yi chen » jui chen

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: wan ((fang yuan) OR (((yang guang) OR (yang yang)))) yi chen chan how know your ;~.
• Adding a wildcard symbol may retrieve word variants: wan ((fang yuan) or (((yang guang) or (yang yang)))) yi chen chan how know your ;*.