Perhaps you should try some spelling variations:
della letteratura » nella letteratura
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
del letteratura » di letteratura, de litteratura, nella letteratura
e letteratura » y literatura, e literatur
grunde libro » grunde fir, und libro
grunde gibt » grund gibt, grunde mit, grunde geht
i grundee » i grunde, i grundidee, i grund

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) OR (grunde gibt)) del letteratura sarda ) OR ( i grundee libro ((della letteratura) OR (e letteratura)) storia ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i ((grunde libro) or (grunde gibt)) del letteratura sarda ) or ( i grundee libro ((della letteratura) OR (e letteratura)) storia ))*".