Perhaps you should try some spelling variations:
theory programming » the programming (Expand search), the reprogramming (Expand search), their reprogramming (Expand search)
decrease theory » decrease their (Expand search), decrease the (Expand search), disease theory (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
decrease il » decrease in (Expand search), decrease of (Expand search), decrease _ (Expand search)
il decrease » l decrease (Expand search), will decrease (Expand search), oil decreases (Expand search)

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

• Removing quotes may allow a broader search: (( decrease il decrease theory programming ) OR ( python _ python python programming ))~.