Perhaps you should try some spelling variations:
"propuesta tecnica practicas methods." » "propuesta tecnicas practicas methods.", "propuesta tecnico tacticas methods.", "propuesta mecanica practica methods.", "propuesta tecnica practicas letradas.", "propuesta tecnica practicas medicas."
"proceso control statistical methods." » "process control statistical methods.", "proceso contra statistical methods.", "proceso contralos statistical methods.", "proceso control statistics methods.", "proceso control estadisticas methods."

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