Perhaps you should try some spelling variations:
competencies control » competencia controle (Expand search), competencias contra (Expand search), companies control (Expand search)
and competencies » and competences (Expand search), and competence (Expand search), of competencies (Expand search)
nesting pythons » nesting patterns (Expand search)
pythons python » python python (Expand search), pitons python (Expand search), piton python (Expand search)
using nesting » using resting (Expand search), using heating (Expand search), using boosting (Expand search)
coder and » code and (Expand search), codes and (Expand search), poder and (Expand search)

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( coder AND competencies control program ) OR ( using nesting pythons python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder and competencies control program ) OR ( using nesting pythons python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder and competencies control program ) OR ( using nesting pythons python programming ))*.