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• Removing quotes may allow a broader search: (( Estudio comparatiu dels sistemes penitenciaria europeia informe extraordinari, novembre 2007 ) OR ( Estudio comparatiu els sistemes penitenciaria europeia informe extraordinari, novembre 2007 )).

Perhaps you should try some spelling variations:
sistemes penitenciaria » sistemas penitenciarios (Expand Search), sistema penitenciario (Expand Search), sistema penitenciari (Expand Search)
penitenciaria europeia » penitenciaria europea (Expand Search), penitenciario europeo (Expand Search), penitenciarios europeos (Expand Search)
informe extraordinari » informe extraordinario (Expand Search)
estudio comparatiu » estudi comparatiu (Expand Search), estudio comparativo (Expand Search), estudio comparado (Expand Search)
europeia informe » europea informe (Expand Search), europa informe (Expand Search), propia informe (Expand Search)
comparatiu dels » comparativo del (Expand Search), comparativa del (Expand Search), comparative des (Expand Search)
comparatiu els » comparatiu entre (Expand Search)
dels sistemes » des systemes (Expand Search), del sistema (Expand Search), de sistemas (Expand Search)
novembre 2007 » noviembre 2007 (Expand Search), noviembre 2005 (Expand Search), noviembre 2000 (Expand Search)
els sistemes » los sistemas (Expand Search), dos sistemas (Expand Search), os sistemas (Expand Search)