Perhaps you should try some spelling variations:
sampling down » sampling how (Expand search), sampling in (Expand search), sampling data (Expand search)
task decrease » mass decrease (Expand search), risk decreases (Expand search), tasks increase (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
down python » on python (Expand search)
python task » python based (Expand search)

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

• Removing quotes may allow a broader search: (( sampling down python task decrease ) OR ( _ python python python programming ))~.