Perhaps you should try some spelling variations:
sampling python » sampling method (Expand search), sampling position (Expand search), sampling methods (Expand search)
python sampling » method sampling (Expand search), thin sampling (Expand search), methods sampling (Expand search)
decrease based » decreased base (Expand search), decrease blood (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease in (Expand search)
or decrease » of decrease (Expand search), not decrease (Expand search), to decrease (Expand search)

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

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