Perhaps you should try some spelling variations:
"proceso contralos policies methodology." » "proceso contralos values methodology.", "proceso contra policies methodology.", "proces contreles policies methodology.", "procesos contables policies methodology."
"proceso control statistical methods." » "process control statistical methods.", "proceso contra statistical methods.", "proces contre statistical methods.", "proceso control statistics methods.", "proceso 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: (("proceso control statistical methods.") or ("proceso contralos policies methodology."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("proceso control statistical methods.") OR ("proceso contralos policies methodology.")).
• Removing quotes may allow a broader search: (( proceso control statistical methods. ) or ( proceso contralos policies methodology. )).
• Adding a wildcard symbol may retrieve word variants: (("proceso control statistical methods.") or ("proceso contralos policies methodology."))*.