Perhaps you should try some spelling variations:
letteratura sulla » letteratura russa, letteratura del
i literatura » ii literatura, y literatura, i literature
i grundei » i grunde, i grund
i grand » i grunde
livre i » livro i, livre 1, livre qui

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 iv) OR (libri v)) letteratura sulla ) OR ( i grand livre i literatura y )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i grundei ((libri iv) OR (libri v)) letteratura sulla ) or ( i grand livre i literatura y ))".
• Adding a wildcard symbol may retrieve word variants: (( i grundei ((libri iv) OR (libri v)) letteratura sulla ) or ( i grand livre i literatura y ))*.