Perhaps you should try some spelling variations:
competencia control » competencia controle (Expand search), competencia central (Expand search), competencia contabil (Expand search)
and competencia » anp competencia (Expand search), ana competencia (Expand search), and competencies (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
co2 python » of python (Expand search), on python (Expand search)
using co2 » using co (Expand search), using cone (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: (( code AND competencia control program ) OR ( using co2 python python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( code and competencia control program ) OR ( using co2 python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( code and competencia control program ) OR ( using co2 python python programming ))*.