Perhaps you should try some spelling variations:
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
chan ming » kian ming, chan eng, chan fong
see chan » see chap, see chak, see change
kong siu » kong eiu, wong siu, kong sar
can see » can seem, can she, can seize
sin » sign, sind, skin

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: wing ((yang yang) OR (wang yang)) can see chan ming ((kong siu) OR (dong sin)) ;~.
• Adding a wildcard symbol may retrieve word variants: wing ((yang yang) or (wang yang)) can see chan ming ((kong siu) or (dong sin)) ;*.