Perhaps you should try some spelling variations:
decrease prevention » disease prevention (Expand search), decreased production (Expand search)
prevention program » intervention program (Expand search), intervention programs (Expand search)
pythons python » python python (Expand search), pitons python (Expand search), piton python (Expand search)
by decrease » by decreased (Expand search), may decrease (Expand search), any decrease (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.

• Removing quotes may allow a broader search: (( code by decrease prevention program ) OR ( python code pythons python programming ))~.