Perhaps you should try some spelling variations:
"proceso control statistical methodology." » "proceso control statistics methodology.", "proceso control statistical methods.", "proceso contra statistical methodology.", "proceso contralos statistical methodology.", "proces contre statistical methodology."
"process control economics methodology." » "process cultural economics methodology.", "process contextos economicos methodology."

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 methodology.") OR ("process control economics methodology."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"proceso control statistical methodology.\") OR (\"process control economics methodology.\"))".
• Removing quotes may allow a broader search: (( proceso control statistical methodology. ) OR ( process control economics methodology. )).
• Adding a wildcard symbol may retrieve word variants: (("proceso control statistical methodology.") OR ("process control economics methodology."))*.