Perhaps you should try some spelling variations:
institutionen politischer » institutionen politische, institutions political, institutions politics
volle institutionen » totale institutionen, ziele institutionen, borse institutionen
storia delle » storia della, teoria delle, teoria della
storia del » historia del, storia della, storia e
die volle » die volker
idee die » idee der, idee des, idee bis

Try widening your search to All Fields.

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• Removing quotes may allow a broader search: ((storia delle) or (storia del)) idee die volle institutionen politischer.