Perhaps you should try some spelling variations:
"procesado con policies methodology." » "procesado con values methodology.", "procesado por policies methodology.", "procesado en policies methodology.", "proceso con policies methodology.", "procesado _ policies methodology.", "procesado con dolichos methodology.", "procesado los policias methodology."
"process control statistical methods." » "procesos control statistical methods.", "proceso control statistical methods.", "procesal control statistical methods.", "process control statistics methods.", "process control estadisticas methods."

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

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