Perhaps you should try some spelling variations:
cheng chan » cheung chan, cheng han, cheng zhang
chan jan » chain jane, chan alan, chan kang
yang jui » yang judy, yang xi
wong sau » wong sam, wong siu, wong shiu
yang yi » yang xi
a gene » a genre, a gender, a gentle
jan a » jane a, can a, jan m

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: cheng chan jan a gene ((yang jui) OR (((yang di) OR (yang yi)))) wong sau ;~.
• Adding a wildcard symbol may retrieve word variants: cheng chan jan a gene ((yang jui) or (((yang di) or (yang yi)))) wong sau ;*.