Perhaps you should try some spelling variations:
yang guang » yang yang, yang liang
yang john » young john, king john, yang jin
wong shiu » wong siu, cong shu, song shin
yan guan » gan guan, yan yuan, yihan guan
vu irene » _ irene
wong sam » wong sau, wong lai, kong sar
wang » wan, lang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR wing) ((yan guan) OR (yang guang)) vu irene yang john ((wong shiu) OR (wong sam)) ;~.
• Adding a wildcard symbol may retrieve word variants: (wang or wing) ((yan guan) or (yang guang)) vu irene yang john ((wong shiu) or (wong sam)) ;*.