Perhaps you should try some spelling variations:
letteratura arti » letteratura arte, letteratura sarda, letteratura di
x letteratura » e letteratura, _ letteratura, di letteratura
grain libri » grain fibril, grain fabric
i grain » ii grain
libri x » libri xv, libri v, libri sex
ii y » ii _, ii 1, ii 2
ii a » ii _, i a

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: (( _ amanda ((ii y) OR (ii a)) literatura y ) OR ( i grain libri x letteratura arti )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( _ amanda ((ii y) OR (ii a)) literatura y ) or ( i grain libri x letteratura arti ))".
• Adding a wildcard symbol may retrieve word variants: (( _ amanda ((ii y) OR (ii a)) literatura y ) or ( i grain libri x letteratura arti ))*.