Perhaps you should try some spelling variations:
allocation problems » allocation problem (Expand search), location problems (Expand search), location problem (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 allocation » methods allocation (Expand search), method location (Expand search), method application (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 AND decrease decrease processes ) OR ( python _ method allocation problems ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease AND decrease decrease processes ) OR ( python _ method allocation problems ))*.