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

• Performing a fuzzy search may retrieve terms with similar spellings: estudio comparado dels sistemes penitenciaris europeus informe extraordinari, noviembre 2007~.
• Adding a wildcard symbol may retrieve word variants: estudio comparado dels sistemes penitenciaris europeus informe extraordinari, noviembre 2007*.

Perhaps you should try some spelling variations:
sistemes penitenciaris » sistemas penitenciarios (Expand Search), sistema penitenciario (Expand Search), sistema penitenciari (Expand Search)
penitenciaris europeus » penitenciarios europeos (Expand Search), penitenciaria europea (Expand Search), penitenciaria europeia (Expand Search)
informe extraordinari » informe extraordinario (Expand Search)
europeus informe » europea informe (Expand Search), europeas conforme (Expand Search), europa informe (Expand Search)
comparado dels » comparado del (Expand Search), comparada dels (Expand Search), comparado de (Expand Search)
noviembre 2007 » noviembre 2005 (Expand Search), novembre 2007 (Expand Search), noviembre 2000 (Expand Search)
dels sistemes » els sistemes (Expand Search), des systemes (Expand Search), del sistema (Expand Search)
estudio » estudios (Expand Search)