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

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