Perhaps you should try some spelling variations:
"proceso control statistics methods." » "proceso control estadistico methods.", "proceso control estadistica methods.", "proceso century statistics methods.", "proceso control statistical methods.", "proceso control statistics methodology.", "proceso contra statistics methods.", "proceso contralos statistics methods.", "proces contre statistics methods."
"process control statistical datos." » "process control statistical data.", "process control estadisticas datos.", "process control statistical methods.", "procesos control statistical datos.", "procesal control statistical datos."

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