Perhaps you should try some spelling variations:
literatur author » literature author, literatur autor, literature authors
literature oral » literature moral, literatura oral, literature morals
y literatur » y literatura
agenda bis » agenda b, agenda aus, agenda b2c
bamenda ii » agenda ii, amanda ii, benda ii
agenda 6i » agenda _, agenda 21, agenda a
2 bamenda » _ bamenda
agenda 6 » agenda _, agenda a, agenda 21
ii y » ii _, ii a, ii 1

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: (( 159 ((((agenda 6i) OR (agenda bis))) OR (agenda 6)) a literature oral ) OR ( 2 bamenda ii y literatur author ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( 159 ((((agenda 6i) OR (agenda bis))) or (agenda 6)) a literature oral ) or ( 2 bamenda ii y literatur author ))*".