Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
young john » kong john, wong john, young jean
john song » john wong, john bonn, john ngosong
hua chen » jui chen, yu chen, a chen
song sam » wong sam, kong sar, song pae
yan yuan » yan guan, fang yuan, yan clan
nan yan » nan ya, wang yan, qian yan

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 yuan) or (nan yan)))) ((hua ren) OR (hua chen)) young john song sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang ((yang guang) OR (((yan yuan) OR (nan yan)))) ((hua ren) OR (hua chen)) young john song sam ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang ((yang guang) or (((yan yuan) or (nan yan)))) ((hua ren) OR (hua chen)) young john song sam ;".
• Adding a wildcard symbol may retrieve word variants: lang ((yang guang) or (((yan yuan) or (nan yan)))) ((hua ren) OR (hua chen)) young john song sam ;*.