Perhaps you should try some spelling variations:
literature author » literature arts
literatur oral » literatura oral, literatur moral, literature moral
agenda iii » agenda i
agenda ii » agenda i, agenda iv, agenda _
2 benda » 2 bends
ii y » ii _, ii a, ii 1
ii 2 » ii _, ii a, i 2

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: (( 1979 ((agenda ii) OR (agenda iii)) _ literatur oral ) OR ( 2 benda ((ii y) OR (ii 2)) literature author )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( 1979 ((agenda ii) OR (agenda iii)) _ literatur oral ) or ( 2 benda ((ii y) or (ii 2)) literature author ))".
• Adding a wildcard symbol may retrieve word variants: (( 1979 ((agenda ii) OR (agenda iii)) _ literatur oral ) or ( 2 benda ((ii y) or (ii 2)) literature author ))*.