Perhaps you should try some spelling variations:
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
literatura de » literatura y, literatura en
i literatura » ii literatura, y literatura, i literature
livre i » livro i, livre 1, livre qui
fir de » fir die, fir den, sir de
air de » pair de, nair de, air des

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