Perhaps you should try some spelling variations:
competencia control » competencia controle (Expand search), competencia central (Expand search), competencia contabil (Expand search)
control problems » control program (Expand search)
and competencia » anp competencia (Expand search), ana competencia (Expand search), and competencies (Expand search)
costing methods » costing method (Expand search)
methods python » methods action (Expand search), pythons python (Expand search), methods method (Expand search)
using costing » using coating (Expand search), using boosting (Expand search), using coatings (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 problems ) OR ( using costing methods python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( code and competencia control problems ) OR ( using costing methods python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( code and competencia control problems ) OR ( using costing methods python programming ))*.