Perhaps you should try some spelling variations:
de letteratura » e letteratura, de litteratura, de litterature
di letteratura » e letteratura, de literatura, della letteratura
i literatura » ii literatura, y literatura, i literature
grand libro » grand livre
i grundei » i grunde, 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 grundei libri ((de letteratura) OR (di letteratura)) russa ) OR ( i ((grand libro) OR (gran libro)) i literatura y )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grundei libri ((de letteratura) OR (di letteratura)) russa ) or ( i ((grand libro) or (gran libro)) i literatura y ))".
• Adding a wildcard symbol may retrieve word variants: (( i grundei libri ((de letteratura) OR (di letteratura)) russa ) or ( i ((grand libro) or (gran libro)) i literatura y ))*.