Perhaps you should try some spelling variations:
"proceso contra service methodology." » "proceso contra science methodology.", "proceso contra sciences methodology.", "process control service methodology.", "proceso consular service methodology."
"procesal control statistical methods." » "process control statistical methods.", "social control statistical methods.", "proces contre statistical methods.", "procesal control statistics methods.", "procesal 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: (("procesal control statistical methods.") OR ("proceso contra service methodology."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"procesal control statistical methods.\") OR (\"proceso contra service methodology.\"))".
• Removing quotes may allow a broader search: (( procesal control statistical methods. ) OR ( proceso contra service methodology. )).
• Adding a wildcard symbol may retrieve word variants: (("procesal control statistical methods.") OR ("proceso contra service methodology."))*.