Perhaps you should try some spelling variations:
estimate method » estimation method (Expand search), estimation methods (Expand search)
python program » action program (Expand search)
using estimate » using estimated (Expand search), using estimation (Expand search), using legitimate (Expand search)
method python » method method (Expand search), python python (Expand search)
code python » pacote python (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: "(( codigo python code python program ) OR ( using estimate method python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( codigo python code python program ) OR ( using estimate method python programming ))*.