Perhaps you should try some spelling variations:
yang guang » yang yang, yang liang
li cheung » hin cheung, siu cheung, wai cheung
know your » grow your
yan yuan » fang yuan, nan yan, yan clan
yan guan » gan guan, yihan guan, quan guan
chan you » chang you, can you, than you
wang » wing, wan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (wang OR lang) ((((yan yuan) or (yang guang))) or (yan guan)) li cheung chan you know your ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR lang) ((((yan yuan) OR (yang guang))) OR (yan guan)) li cheung chan you know your ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang OR lang) ((((yan yuan) or (yang guang))) or (yan guan)) li cheung chan you know your ;*".