Perhaps you should try some spelling variations:
istituzioni politischen » istituzioni politiche, institution politischer, istituzioni politica
storia delle » storia della, teoria delle, teoria della
storia del » historia del, storia della, storia e
de dolle » de double, de douze
de dol » de don, de dos, de dom

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: ((storia delle) OR (storia del)) idee ((de dolle) OR (de dol)) istituzioni politischen.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((storia delle) or (storia del)) idee ((de dolle) OR (de dol)) istituzioni politischen".
• Adding a wildcard symbol may retrieve word variants: ((storia delle) or (storia del)) idee ((de dolle) OR (de dol)) istituzioni politischen*.