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