Perhaps you should try some spelling variations:
yang guang » yang yang, yang liang
chen yong » chen rong, chen yang, zhen yong
yong john » young john, kong john, wong john
john kong » john king, john song, john wong
yan guan » gan guan, yihan guan, quan guan
yan yuan » fang yuan, yan clan, yan kun
hua chen » jui chen, yu chen, a chen
nan yan » nan ya, wang yan, qian yan
sar » sara, star, saur

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang ((((yang guang) or (yan guan))) or (((yan yuan) or (nan yan)))) hua chen yong john kong sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang ((((yang guang) OR (yan guan))) OR (((yan yuan) OR (nan yan)))) hua chen yong john kong sar ;.
• Adding a wildcard symbol may retrieve word variants: lang ((((yang guang) or (yan guan))) or (((yan yuan) or (nan yan)))) hua chen yong john kong sar ;*.