Perhaps you should try some spelling variations:
defense processes » defense process (Expand search), decrease processes (Expand search), disease processes (Expand search)
decrease defense » defense defense (Expand search), decrease release (Expand search), decreases disease (Expand search)
effect python » effect method (Expand search), effect author (Expand search)
python waste » python system (Expand search), cotton waste (Expand search), python based (Expand search)
waste effect » rate effect (Expand search), late effect (Expand search), acute effect (Expand search)
decrease on » decrease in (Expand search), decrease of (Expand search), decrease and (Expand search)
on decrease » on decreased (Expand search), of decrease (Expand search), or decrease (Expand search)

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

• Removing quotes may allow a broader search: (( decrease on decrease defense processes ) OR ( python waste effect python programming ))~.