Perhaps you should try some spelling variations:
extraction method » extraction methods (Expand search)
based extraction » based interaction (Expand search), phase extraction (Expand search), and extraction (Expand search)
power functions » power function (Expand search), motor functions (Expand search), taper functions (Expand search)
functions based » function based (Expand search), functions case (Expand search), functions used (Expand search)
coding python » codigo python (Expand search), codigos python (Expand search), using python (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
using coding » using coping (Expand search), using coating (Expand search), using cooking (Expand search)

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

• Removing quotes may allow a broader search: (( power functions based extraction method ) OR ( using coding python python programming ))~.