Perhaps you should try some spelling variations:
"procesos sciences statistical methodology." » "procesos sciences statistics methodology.", "procesos sciences statistical methods.", "procesos ciencias statistical methodology.", "procesos sociales statistical methodology.", "procesos civiles statistical methodology."
"process control estadistica methods." » "process control estadistico methods.", "process control statistical methods.", "process economia estadistica methods.", "process control estadisticas metodos.", "process control estadisticas medicas."

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("procesos sciences statistical methodology.") OR ("process control estadistica methods."))~.
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• Adding a wildcard symbol may retrieve word variants: (("procesos sciences statistical methodology.") or ("process control estadistica methods."))*.