Perhaps you should try some spelling variations:
federation anarchiste » federazione anarchica (Expand Search)
federazione anarchici » federazione anarchica (Expand Search), federazioni anarchiche (Expand Search)
principio sei » principio del (Expand Search)
sei paesi » i paesi (Expand Search)
paesi de » paesi _ (Expand Search), paese e (Expand Search)
communiste* » comunista* (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: principio sei paesi de la ((federation anarchiste) OR (federazione anarchici)) communiste~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "principio sei paesi de la ((federation anarchiste) OR (federazione anarchici)) communiste*".