Perhaps you should try some spelling variations:
decrease survival » decreased survival (Expand search), decreases survival (Expand search), increase survival (Expand search)
survival program » survival progress (Expand search), survival nomogram (Expand search), survival from (Expand search)
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (Expand search)
their decrease » the decrease (Expand search), their disease (Expand search), the decreased (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
python based » action based (Expand search)
based python » based path (Expand search), and python (Expand search), gate python (Expand search)

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

• Removing quotes may allow a broader search: (( decrease their decrease survival program ) OR ( python based python python programming ))~.