Perhaps you should try some spelling variations:
contraction method » construction method (Expand search), contracting method (Expand search), contractive method (Expand search)
based contraction » based contractions (Expand search), base contraction (Expand search), based construction (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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( power functions based contraction method ) OR ( using coding python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( power functions based contraction method ) OR ( using coding python python programming ))*.