Perhaps you should try some spelling variations:
"process control policies methodology." » "process control values methodology.", "process control politico methodology.", "process control political methodology.", "process cultural policies methodology."
"procesal control linguistics methodology." » "procesal contact linguistics methodology.", "procesal contextos linguisticos methodology.", "procesal contacto linguistico methodology.", "social control linguistics methodology.", "proceso contra linguistics methodology.", "proces contre linguistics methodology."

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: (("procesal control linguistics methodology.") OR ("process control policies methodology."))~.
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