Perhaps you should try some spelling variations:
yang guang » yang yang, yang liang
yang john » young john, king john, yang jin
john song » john wong, john bonn, john ngosong
yan guan » gan guan, yan yuan, yihan guan
song sam » wong sam, kong sar, song pae
hua ren » hua chen
wang » wan, lang

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 wing) ((yan guan) or (yang guang)) ((hua irene) OR (hua ren)) yang john song sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR wing) ((yan guan) OR (yang guang)) ((hua irene) OR (hua ren)) yang john song sam ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or wing) ((yan guan) or (yang guang)) ((hua irene) OR (hua ren)) yang john song sam ;*".