Perhaps you should try some spelling variations:
performance programme » performance program (Expand search), performance profile (Expand search), performative program (Expand search)
methods performance » method performance (Expand search), metrics performance (Expand search), meta performance (Expand search)
decrease processes » disease processes (Expand search), defense processes (Expand search), decay processes (Expand search)
decrease decrease » decrease release (Expand search), disease decreases (Expand search), decrease sucrose (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease _ decrease decrease processes ) OR ( python AND methods performance programme ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease _ decrease decrease processes ) OR ( python AND methods performance programme ))*.