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)
selection using » detection using (Expand search), prediction using (Expand search)
decrease β » decrease _ (Expand search), decrease in (Expand search), decrease of (Expand search)
β decrease » _ decrease (Expand search), l decrease (Expand search), α decrease (Expand search)
pid python » in python (Expand search), via python (Expand search), api python (Expand search)
using pid » using pig (Expand search), using rapid (Expand search), using lipid (Expand search)

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

• Removing quotes may allow a broader search: (( decrease β decrease defense processes ) OR ( selection using pid python programming ))~.