Perhaps you should try some spelling variations:
prevention programmes » prevention programme (Expand search), prevention programs (Expand search), prevention program (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)
method prevention » method retention (Expand search), method presentation (Expand search), method projection (Expand search)
decrease on » decrease in (Expand search), decrease of (Expand search), decrease and (Expand search)
on decrease » on decreased (Expand search), or decrease (Expand search), of decrease (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 on decrease decrease processes ) OR ( python _ method prevention programmes ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease on decrease decrease processes ) OR ( python _ method prevention programmes ))*.