Perhaps you should try some spelling variations:
system decrease » system decreases (Expand search), system increase (Expand search), symptom decrease (Expand search)
module python » modulo python (Expand search), module method (Expand search)
python system » action system (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
based module » based model (Expand search), based models (Expand search), based mobile (Expand search)

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

• Removing quotes may allow a broader search: (( based module python system decrease ) OR ( _ python python python programming ))~.