Perhaps you should try some spelling variations:
institution politischer » institutionen politischer, institutionen politische, institutions political
whole institution » die institution, eine institution
teoria de » teoria della
idee 2 » idee _, idee 4
idee e » idee de, idee _, idee 4

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: teoria de ((((idee 2) OR (idee e))) OR (idee 3)) whole institution politischer.
• The words AND, OR and NOT may confuse the search; try adding quotes: "teoria de ((((idee 2) OR (idee e))) or (idee 3)) whole institution politischer".
• Adding a wildcard symbol may retrieve word variants: teoria de ((((idee 2) OR (idee e))) or (idee 3)) whole institution politischer*.