Perhaps you should try some spelling variations:
liberazione anarchica » federazione anarchica (Expand Search), rivoluzione anarchica (Expand Search)
principes de » principio del (Expand Search)
de della » e della (Expand Search), e delle (Expand Search), e nella (Expand Search)
de base » di base (Expand Search)
anarchico » anarchismo (Expand Search), anarchia (Expand Search)
communiste » comunista (Expand Search)

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: "principes de base de della ((liberazione anarchica) OR (libertario anarchico)) communiste~".
• Adding a wildcard symbol may retrieve word variants: principes de base de della ((liberazione anarchica) OR (libertario anarchico)) communiste*.