Perhaps you should try some spelling variations:
decrease processes » disease processes (Expand search), defense processes (Expand search), decay processes (Expand search)
disease decrease » disease decreases (Expand search), diseases decreases (Expand search), disease increased (Expand search)
decayed tooth » delayed tooth (Expand search), decayed teeth (Expand search), decayed wood (Expand search)
tooth disease » mouth disease (Expand search)
python c » python _ (Expand search)
c pitons » _ pitons (Expand search), s litons (Expand search), c picos (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decayed tooth disease decrease processes ) OR ( python c pitons python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decayed tooth disease decrease processes ) OR ( python c pitons python programming ))*.