Perhaps you should try some spelling variations:
"procesal control statistics methods." » "procesal control statistical methods.", "procesal control statistics methodology.", "procesal control estadistico methods.", "procesal control estadistica methods.", "process control statistics methods.", "proceso contra statistics methods.", "proces contre statistics methods."
"social control statistics methods." » "social control statistical methods.", "social control statistics methodology.", "social control estadistico methods.", "social control estadistica methods."

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