Perhaps you should try some spelling variations:
literatura arab » literature arab, literatura artes, literatura a
literatura oral » literature moral, literatura a, literatura del
la literatura » la litterature, a literature
a literatura » a literature, y literatura, a literatur
agenda ii » agenda iii, agenda i, agenda iv
1 agenda » 3 agenda, 1 agency, 1 agent
7 agenda » 7 agent, 7 agency
_ agenda » _ agent, _ agents, _ agency

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: (( ((1 agenda) OR (7 agenda)) i a literatura oral ) OR ( _ agenda ii la literatura arab )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((1 agenda) OR (7 agenda)) i a literatura oral ) or ( _ agenda ii la literatura arab ))".
• Adding a wildcard symbol may retrieve word variants: (( ((1 agenda) OR (7 agenda)) i a literatura oral ) or ( _ agenda ii la literatura arab ))*.