Perhaps you should try some spelling variations:
dale letteratura » della letteratura, e letteratura, di letteratura
letteratura di » literatura de
grain fibril » grain fabric, grains fibre
fibril dale » fibril angle, fibril based, fibril state
2 amandi » 2 amanda, _ amanda, _ mandi
libri e » libri de, libri v, libri sex
libri x » libri xv, libri v, libri sex
i grain » ii grain

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: (( 2 amandi ((libri e) OR (libri x)) letteratura di ) OR ( i grain fibril dale letteratura e )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( 2 amandi ((libri e) OR (libri x)) letteratura di ) or ( i grain fibril dale letteratura e ))".
• Adding a wildcard symbol may retrieve word variants: (( 2 amandi ((libri e) OR (libri x)) letteratura di ) or ( i grain fibril dale letteratura e ))*.