Perhaps you should try some spelling variations:
huang yang » huang chang, wang yang, yang yang
huang ying » huang jing, huang ting, huang bin
gain john » grin john, gutin john, swain john
wong shiu » cong shu, song shin, wong sau
wong siu » kong siu, wong sau, wong siew
china 3 » china 1
3 gain » 3 grain, _ gain, n gain

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: ((huang yang) OR (huang ying)) can china 3 gain john ((wong siu) OR (wong shiu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((huang yang) or (huang ying)) can china 3 gain john ((wong siu) OR (wong shiu)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((huang yang) or (huang ying)) can china 3 gain john ((wong siu) OR (wong shiu)) ;*.