Perhaps you should try some spelling variations:
pythons python » python python (Expand search), pitons python (Expand search), piton python (Expand search)
decrease tooth » decrease with (Expand search), decrease food (Expand search), decrease costs (Expand search)
tooth disease » mouth disease (Expand search)
disease based » disease caused (Expand search), disease case (Expand search), diseases caused (Expand search)
based process » based protein (Expand search)
reais pythons » reais python (Expand search)
python reais » python regius (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 based process ) OR ( python reais pythons python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease tooth disease based process ) OR ( python reais pythons python programming ))*.