Perhaps you should try some spelling variations:
"literatura sabe de isla." » "literatura isabel de isla.", "literatura arabe de isla.", "literatura sobre de isla.", "literatura sabe de isaac."
"literatura de de islam." » "literatura de del islam.", "literatura de e islam.", "literatura de de ilam.", "literatura de de isaacm.", "literatura de di islam."
"literatura de fe islam." » "literatura de e islam.", "literatura de del islam.", "literatura de el 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 sabe de isla.") or ((("literatura de de islam.") OR ("literatura de fe islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura sabe de isla.") OR ((("literatura de de islam.") OR ("literatura de fe islam.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura sabe de isla.\") or (((\"literatura de de islam.\") OR (\"literatura de fe islam.\"))))".
• Removing quotes may allow a broader search: (( literatura sabe de isla. ) or ((( literatura de de islam. ) OR ( literatura de fe islam. )))).
• Adding a wildcard symbol may retrieve word variants: (("literatura sabe de isla.") or ((("literatura de de islam.") OR ("literatura de fe islam."))))*.