Perhaps you should try some spelling variations:
letteratura araba » letteratura arte, letteratura arti, letteratura fra
literatur volker » literatur vor, literatur volume, literature volume
literatur silke » literatur siehe, literatur silikose, literatur sowie
amandi libri » magni libri
agenda ii » agenda iii, agenda i, agenda iv
i amandi » _ amanda, _ mandi, 1 amanda
libri x » libri xv, libri v, libri sex

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 _ letteratura araba ) OR ( i amandi libri x ((literatur silke) OR (literatur volker)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( _ agenda ii _ letteratura araba ) or ( i amandi libri x ((literatur silke) OR (literatur volker)) ))".
• Adding a wildcard symbol may retrieve word variants: (( _ agenda ii _ letteratura araba ) or ( i amandi libri x ((literatur silke) OR (literatur volker)) ))*.