Perhaps you should try some spelling variations:
"literature najat el islam." » "literature arab el islam.", "literatura nahuatl el islam.", "literature indian el islam."
"literatura sa en islam." » "literatura a en islam.", "literatura se en islam.", "literatura sin en islam.", "literatura sa e islam.", "literatura sa un islam.", "literatura sa en ilam.", "literatura sp en islam.", "literatura si en islam."
"literatura y en islam." » "literatura y e islam.", "literatura y un islam.", "literatura y en ilam.", "literatura y el islam."

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("literatura sa en islam.") or ("literatura y en islam."))) or ("literature najat el islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura sa en islam.") OR ("literatura y en islam."))) OR ("literature najat el islam.")).
• Removing quotes may allow a broader search: (((( literatura sa en islam. ) or ( literatura y en islam. ))) or ( literature najat el islam. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura sa en islam.") or ("literatura y en islam."))) or ("literature najat el islam."))*.