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

• Performing a fuzzy search may retrieve terms with similar spellings: ((estudio comparatiu) OR (estudi comparatiu)) des systemes penitenciaris europeus informe extraordinari, novembre 2007~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((estudio comparatiu) OR (estudi comparatiu)) des systemes penitenciaris europeus informe extraordinari, novembre 2007".
• Adding a wildcard symbol may retrieve word variants: ((estudio comparatiu) OR (estudi comparatiu)) des systemes penitenciaris europeus informe extraordinari, novembre 2007*.

Perhaps you should try some spelling variations:
penitenciaris europeus » penitenciarios europeos (Expand Search), penitenciaria europea (Expand Search), penitenciaria europeia (Expand Search)
systemes penitenciaris » sistemas penitenciarios (Expand Search), sistema penitenciario (Expand Search), sistema penitenciari (Expand Search)
informe extraordinari » informe extraordinario (Expand Search)
estudio comparatiu » estudio comparativo (Expand Search), estudio comparado (Expand Search), estudo comparativo (Expand Search)
estudi comparatiu » estudio comparativo (Expand Search), estudo comparativo (Expand Search), estudio comparado (Expand Search)
europeus informe » europea informe (Expand Search), europeas conforme (Expand Search), europa informe (Expand Search)
novembre 2007 » noviembre 2007 (Expand Search), noviembre 2005 (Expand Search), noviembre 2000 (Expand Search)