Perhaps you should try some spelling variations:
"proceso contrastive linguistics methodology." » "proceso comparative linguistics methodology.", "proceso contact linguistics methodology.", "proceso constructivo linguistics methodology."
"process control statistical methods." » "process control statistics methods.", "process control estadisticas methods."

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: (("proceso contrastive linguistics methodology.") OR ("process control statistical methods."))~.
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