Perhaps you should try some spelling variations:
"literatura isabel de isaac." » "literatura arabe de isaac.", "literatura imanol de isaac.", "literatura diamela de isaac."
"literatura de el islam." » "literatura de e islam.", "literatura de en islam.", "literatura de del islamm."
"literatura de el isla." » "literatura de e isla.", "literatura de en isla.", "literatura de del islam."

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

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