Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
wong john » wrong john, kong john, longo john
song sam » kong sar, song pae, song so
ren wong » ren weng
wong sam » wong sau, wong lai, kong sar
yan yuan » yan guan, fang yuan, yan clan
nan yan » nan ya, wang yan, qian yan
hua ren » hua chen

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 wong john ((song sam) OR (wong 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 wong john ((song sam) OR (wong 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 wong john ((song sam) OR (wong sam)) ;".
• Adding a wildcard symbol may retrieve word variants: lang ((yang guang) or (((yan yuan) or (nan yan)))) hua ren wong john ((song sam) OR (wong sam)) ;*.