Perhaps you should try some spelling variations:
decrease extension » disease extension (Expand search), decreased expression (Expand search), decreases expression (Expand search)
extension program » extension project (Expand search)
pattern decoding » pattern defining (Expand search), patterns according (Expand search), patterns depending (Expand search)
decoding python » decoding method (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 extension program ) OR ( pattern decoding python python programming ))~.