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

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang OR wan) ((yan xuan) OR (yang guang)) vu irene yang john ((wong shiu) OR (wong sam)) ;~".
• Adding a wildcard symbol may retrieve word variants: (wang OR wan) ((yan xuan) OR (yang guang)) vu irene yang john ((wong shiu) OR (wong sam)) ;*.