Perhaps you should try some spelling variations:
decrease teaching » decrease replacing (Expand search), case teaching (Expand search), sciense teaching (Expand search)
teaching program » teaching proposal (Expand search), teaching process (Expand search)
waste decrease » faster decrease (Expand search), rate decrease (Expand search), system decrease (Expand search)
piton python » pitons python (Expand search), in python (Expand search), with python (Expand search)
code waste » code master (Expand search), cofee waste (Expand search), care waste (Expand search)
data piton » katia piton (Expand search), data pit (Expand search), data position (Expand search)

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

• Removing quotes may allow a broader search: (( code waste decrease teaching program ) OR ( python data piton python programming ))~.