Perhaps you should try some spelling variations:
"literatura arabes e isla." » "literatura arabe e isla.", "literatura arte e isla.", "literature arab e isla.", "literatura arabes e islas.", "literatura arabes de isla.", "literatura arabes e islam."
"literatura del de isaacm." » "literatura de de isaacm.", "literatura en de isaacm.", "literatura del de isaac.", "literatura del de islam.", "literatura del e isaac.", "literatura del dean isaacm."
"literatura e de isaacm." » "literatura de de isaacm.", "literatura en de isaacm.", "literatura e de isaac.", "literatura e de islam.", "literatura e e isaac.", "literatura y de isaacm.", "literatura _ de isaacm."

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("literatura e de isaacm.") OR ("literatura del de isaacm."))) or ("literatura arabes e isla."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura e de isaacm.") OR ("literatura del de isaacm."))) OR ("literatura arabes e isla.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"literatura e de isaacm.\") OR (\"literatura del de isaacm.\"))) or (\"literatura arabes e isla.\"))".
• Removing quotes may allow a broader search: (((( literatura e de isaacm. ) OR ( literatura del de isaacm. ))) or ( literatura arabes e isla. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura e de isaacm.") OR ("literatura del de isaacm."))) or ("literatura arabes e isla."))*.