Perhaps you should try some spelling variations:
decrease prime » decrease risk (Expand search), decreased time (Expand search), decrease pro (Expand search)
prime programa » primer programa (Expand search), prime program (Expand search), preme programa (Expand search)
python codigos » python codigo (Expand search), python coding (Expand search), vpython colisoes (Expand search)
codigos python » codigo python (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
decrease std » decrease sod (Expand search), decrease and (Expand search), decrease at (Expand search)
std decrease » to decrease (Expand search), and decrease (Expand search), spp decrease (Expand search)

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

• Removing quotes may allow a broader search: (( decrease std decrease prime programa ) OR ( python codigos python python programming ))~.