Perhaps you should try some spelling variations:
decrease tooth » decrease with (Expand search), decrease food (Expand search), decrease costs (Expand search)
copd processed » cold processed (Expand search), food processed (Expand search), co processed (Expand search)
tooth disease » mouth disease (Expand search)
disease copd » disease case (Expand search)
piton python » pitons python (Expand search), in python (Expand search), with python (Expand search)
python code » python coding (Expand search), python redes (Expand search)
code piton » code position (Expand search)

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

• Removing quotes may allow a broader search: (( decrease tooth disease copd processed ) OR ( python code piton python programming ))~.