Perhaps you should try some spelling variations:
litterature author » literature author, literature authors, literature anthony
grundede liberte » grande liberte
du letteratura » su letteratura, sua letteratura, e letteratura
di letteratura » e letteratura, de literatura, della letteratura
i litterature » i litteraturen, i literature, _ litterature
grunde libro » grunde fir, grunde gibt, und libro
i grundede » i grundidee, i grundideen
libro i » libro di, libro de

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: (( i grunde libro i litterature author ) OR ( i grundede liberte ((du letteratura) OR (di letteratura)) sarda )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grunde libro i litterature author ) or ( i grundede liberte ((du letteratura) OR (di letteratura)) sarda ))".
• Adding a wildcard symbol may retrieve word variants: (( i grunde libro i litterature author ) or ( i grundede liberte ((du letteratura) OR (di letteratura)) sarda ))*.