Perhaps you should try some spelling variations:
decrease comprehension » disease comprehension (Expand search), discourse comprehension (Expand search), sentence comprehension (Expand search)
comprehension test » comprehension et (Expand search), compression test (Expand search), comprehension of (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)
python code » python coding (Expand search), python redes (Expand search)
code python » codigo python (Expand search), pacote python (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 comprehension test ) OR ( python code python python programming ))~.