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)
python regius » python redes (Expand search)
regius python » reais python (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
disease cmos » disease cross (Expand search), disease cats (Expand search), disease cost (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 cmos process ) OR ( python regius python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease tooth disease cmos process ) OR ( python regius python python programming ))*.