Perhaps you should try some spelling variations:
cain china » can china, china china, spain china
china rent » china ren, china recent, china real
wrong john » strong john, kong john, bowring john
wong john » kong john, longo john, young john
wong shiu » wong siu, song shin, wong sau
sin cain » sin fin, tin can
dong » doing, long, done

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: dong sin cain china rent ((wrong john) OR (wong john)) ((wong shiu) OR (cong shu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong sin cain china rent ((wrong john) OR (wong john)) ((wong shiu) or (cong shu)) ;~".
• Adding a wildcard symbol may retrieve word variants: dong sin cain china rent ((wrong john) OR (wong john)) ((wong shiu) or (cong shu)) ;*.