Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
chen chih » chen chiu, chen zhi, chou chih
know your » grow your
yan yuan » yan guan, fang yuan, nan yan
fan guon » gan guan, yan guan
chih how » china how, cash how, chih jou
how know » now known, you know, do know
li chen » 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 OR wing) ((((yan yuan) OR (yang guang))) OR (fan guon)) li chen chih how know your ;~.
• Adding a wildcard symbol may retrieve word variants: (wan or wing) ((((yan yuan) or (yang guang))) or (fan guon)) li chen chih how know your ;*.