Perhaps you should try some spelling variations:
external decrease » external degrees (Expand search), bacterial decrease (Expand search), nocturnal decrease (Expand search)
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)
based external » and external (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
python api » python and (Expand search)

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

• Removing quotes may allow a broader search: (( based external decrease defense processes ) OR ( python api python python programming ))~.