Perhaps you should try some spelling variations:
china real » china's real, china dream, china rural
sine fine » fine line, die fine, line file
real wong » real long, real work
wong john » wrong john, kong john, longo john
wong siu » wong shiu, kong siu, wong sau
sin fin » pin fins, sin cain, skin fig
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 fin) OR (sine fine)) china real wong john ((wong siu) OR (cong shu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((sin fin) OR (sine fine)) china real wong john ((wong siu) or (cong shu)) ;~".
• Adding a wildcard symbol may retrieve word variants: dong ((sin fin) OR (sine fine)) china real wong john ((wong siu) or (cong shu)) ;*.