Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
de letteratura » e letteratura, di letteratura, de litteratura
grunde libro » grunde fir, grunde gibt, und libro
e literatura » de literatura, e literatur, a literatura
y literatura » la literatura
i grundei » i grund
libri de » libro de, libre de, libri duo

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 grundei libri de letteratura sarda ) OR ( i grunde libro ((e literatura) OR (y literatura)) y )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grundei libri de letteratura sarda ) or ( i grunde libro ((e literatura) OR (y literatura)) y ))".
• Adding a wildcard symbol may retrieve word variants: (( i grundei libri de letteratura sarda ) or ( i grunde libro ((e literatura) OR (y literatura)) y ))*.