Perhaps you should try some spelling variations:
sampling effect » sampling effort (Expand search), sampling efforts (Expand search), coupling effect (Expand search)
python program » action program (Expand search)
effect python » effect method (Expand search), effect author (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
coder python » codigo python (Expand search), compra python (Expand search)
python using » python usando (Expand search), python coding (Expand search), action using (Expand search)
using python » usando python (Expand search), in python (Expand search)

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

• Removing quotes may allow a broader search: (( coder python using python program ) OR ( sampling effect python python programming ))~.