Perhaps you should try some spelling variations:
della letteratura » nella letteratura, e letteratura
letteratura arti » letteratura arte, letteratura sarda, letteratura di
literatura de » literatura y, literatura en
grain fibril » grain fabric, grains fibre
i grain » ii grain
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 de ) OR ( i grain fibril della letteratura arti )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( _ amanda ((ii y) OR (ii a)) literatura de ) or ( i grain fibril della letteratura arti ))".
• Adding a wildcard symbol may retrieve word variants: (( _ amanda ((ii y) OR (ii a)) literatura de ) or ( i grain fibril della letteratura arti ))*.