Perhaps you should try some spelling variations:
"literatura sabe de isaac." » "literatura isabel de isaac.", "literatura arabe de isaac.", "literatura sobre de isaac."
"literatura de e islas." » "literatura de fe islas.", "literatura de _ islas.", "literatura de a islas."
"literatura de el islam." » "literatura de fel islam.", "literatura de _l islam.", "literatura de al islam.", "literatura de el isla."

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 isaac.") or ((("literatura de e islas.") OR ("literatura de el islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura sabe de isaac.") OR ((("literatura de e islas.") OR ("literatura de el islam."))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literatura sabe de isaac.\") or (((\"literatura de e islas.\") OR (\"literatura de el islam.\"))))*".
• Removing quotes may allow a broader search: (( literatura sabe de isaac. ) or ((( literatura de e islas. ) OR ( literatura de el islam. ))))*.