Perhaps you should try some spelling variations:
"literatura arabes de isla." » "literatura arabe de isla.", "literatura arte de isla.", "literature arab de isla.", "literatura arabes e isla.", "literatura arabes y isla."
"literatura en de isaac." » "literatura de de isaac.", "literatura espana de isaac.", "literatura den de isaac.", "literatura deln de isaac."
"literatura e dde islam." » "literatura de dde islam.", "literatura del dde islam.", "literatura e de islam.", "literatura e del islam.", "literatura e e islam."

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 en de isaac.") or ("literatura e dde islam."))) or ("literatura arabes de isla."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura en de isaac.") OR ("literatura e dde islam."))) OR ("literatura arabes de isla.")).
• Removing quotes may allow a broader search: (((( literatura en de isaac. ) or ( literatura e dde islam. ))) or ( literatura arabes de isla. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura en de isaac.") or ("literatura e dde islam."))) or ("literatura arabes de isla."))*.