Perhaps you should try some spelling variations:
pathogen programming » python programming (Expand search), math programming (Expand search), agent programming (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)
root pathogen » root pathogens (Expand search), host pathogen (Expand search), of pathogen (Expand search)
python using » python coding (Expand search), python usando (Expand search), action using (Expand search)
decrease l » decrease il (Expand search), decrease _ (Expand search), decrease β (Expand search)
l decrease » _ decrease (Expand search), α decrease (Expand search), to decrease (Expand search)
using root » causing root (Expand search), during root (Expand search), using robotic (Expand search)

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

• Removing quotes may allow a broader search: (( decrease l decrease decrease processes ) OR ( python using root pathogen programming ))~.