Perhaps you should try some spelling variations:
decrease processes » disease processes (Expand search), defense processes (Expand search), decay processes (Expand search)
decrease survival » decreased survival (Expand search), decreases survival (Expand search), increase survival (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
survival may » survival by (Expand search), survival at (Expand search), survival an (Expand search)
may decrease » may increase (Expand search), can decrease (Expand search), rate decrease (Expand search)
data python » dado python (Expand search), gate python (Expand search), dados python (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 survival may decrease processes ) OR ( python data python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease survival may decrease processes ) OR ( python data python python programming ))*.