Perhaps you should try some spelling variations:
"proceso contra statistical methodology." » "proceso contra statistics methodology.", "proceso contra statistical methods.", "proceso control 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("proceso contra statistical methodology.") or ("process control estadistica methods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("proceso contra statistical methodology.") OR ("process control estadistica methods.")).
• Removing quotes may allow a broader search: (( proceso contra statistical methodology. ) or ( process control estadistica methods. )).
• Adding a wildcard symbol may retrieve word variants: (("proceso contra statistical methodology.") or ("process control estadistica methods."))*.