Perhaps you should try some spelling variations:
clustering python » clustering method (Expand search), clustering methods (Expand search), clustering pattern (Expand search)
componente convex » componente conexa (Expand search), componente chave (Expand search), componente confiavel (Expand search)
using clustering » and clustering (Expand search), means clustering (Expand search)
convex program » convex programs (Expand search), conviver program (Expand search), softex program (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder _ componente convex program ) OR ( using clustering python python programming ))~".
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