Perhaps you should try some spelling variations:
decrease tooth » decrease with (Expand search), decrease food (Expand search), decrease costs (Expand search)
tooth disease » mouth disease (Expand search)
disease care » disease case (Expand search), disease carta (Expand search), disease cases (Expand search)
care process » change process (Expand search)
python code » python coding (Expand search), python redes (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: "(( decrease tooth disease care process ) OR ( python code _ python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease tooth disease care process ) OR ( python code _ python programming ))*.