Perhaps you should try some spelling variations:
china lehren » china loren, china ren
lehren kong » lehren von, lehren kann
doing sine » doing time, doing science
fine china » size china, finance china, famines china
sine fine » fine line, die fine, line file
kong john » king john, wong john, longo john
wong sau » wong sam, wong siu, wong shiu

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: doing sine fine china lehren kong john ((wong sau) OR (cong shu)) ;~.
• Adding a wildcard symbol may retrieve word variants: doing sine fine china lehren kong john ((wong sau) or (cong shu)) ;*.