Perhaps you should try some spelling variations:
institution politischer » institutionen politischer, institutionen politische, institutions political
teoria delle » teoria della, storia della, teoria de
delle aree » delle arti
11 totalen » 11 totale, 11 total, 1 totale
51 totale » 1 total, 11 total

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "teoria delle aree ((11 totalen) OR (51 totale)) institution politischer".
• Adding a wildcard symbol may retrieve word variants: teoria delle aree ((11 totalen) OR (51 totale)) institution politischer*.