Perhaps you should try some spelling variations:
forming special » working special, absorbing special, learning special
special social » social social, spatial social, specific social
coal forming » cold forming, soil forming, sol forming
china's coal » china's local, china's global, china's civil
can china's » china china's
dong bin » dong di, dann bin

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 bin) OR (wang yan))) OR (dong sin)) can china's coal forming special social skills ;~.
• Adding a wildcard symbol may retrieve word variants: ((((dong bin) or (wang yan))) or (dong sin)) can china's coal forming special social skills ;*.