Perhaps you should try some spelling variations:
yan dean » yang dean, lane dean, can deal
run gain » run pain
ying jin » yang jin, jing ji
yang jie » yang jin, yang di, yang jui
wong sau » wong sam, wong siu, wong shiu
wai yan » wang yan, wei yang
n gain » _ gain
sar » sara, star, saur

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: wai yan dean ((n gain) OR (run gain)) ((ying jin) OR (yang jie)) ((wong sau) OR (kong sar)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wai yan dean ((n gain) OR (run gain)) ((ying jin) or (yang jie)) ((wong sau) or (kong sar)) ;~".
• Adding a wildcard symbol may retrieve word variants: wai yan dean ((n gain) OR (run gain)) ((ying jin) or (yang jie)) ((wong sau) or (kong sar)) ;*.