Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
young john » kong john, wong john, young jean
wang yang » wang yan, wang liang, wang yanling
guang hui » chuang hui, wang hui, gang hu
yang john » king john, yang jin, yang jun
wong sam » wong sau, wong lai, von sam
sar » sara, star, saur

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang guang hui irene ((yang john) or (young john)) ((wong sam) OR (kong sar)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang guang hui irene ((yang john) OR (young john)) ((wong sam) OR (kong sar)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang guang hui irene ((yang john) or (young john)) ((wong sam) OR (kong sar)) ;".
• Adding a wildcard symbol may retrieve word variants: wang yang guang hui irene ((yang john) or (young john)) ((wong sam) OR (kong sar)) ;*.