Perhaps you should try some spelling variations:
"propuestas teoricas basicas methods." » "propuesta teorica basicas methods.", "propuesta teorico basicas methods.", "propuesta tecnica basicas methods.", "propuestas teorias basicas methods.", "propuestas tecnicas basicas methods.", "propuestas teoria basica methods.", "propuestas teoricas basicos metodos."
"process control statistical methods." » "procesos control statistical methods.", "proceso control statistical methods.", "procesal control statistical methods.", "process control statistics methods.", "process control estadisticas methods."

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