Perhaps you should try some spelling variations:
literatur oral » literatura oral, literatur moral, literature moral
literature art » literature part, literature arts, literature a
3 agenda » _ agenda, 7 agenda, 1 agenda
_ agency » _ agents
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: (( 3 agenda _ a literatur oral ) OR ( ((_ agency) OR (_ agent)) ii a literature art )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( 3 agenda _ a literatur oral ) or ( ((_ agency) OR (_ agent)) ii a literature art ))".
• Adding a wildcard symbol may retrieve word variants: (( 3 agenda _ a literatur oral ) or ( ((_ agency) OR (_ agent)) ii a literature art ))*.