Perhaps you should try some spelling variations:
"literature early e islam." » "literature study e islam.", "literature latin e islam.", "literatura al e islam.", "literature earl e islam.", "literature early evo islam.", "literature early new islam.", "literature early el islam.", "literature early e islas."
"literatura a del islam." » "literatura al del islam.", "literatura e del islam.", "literatura en del islam.", "literatura a el islam.", "literatura y del islam.", "literatura o del islam."
"literatura de de islas." » "literatura de e islas.", "literatura de de isla.", "literatura de de islam.", "literatura de fe islas.", "literatura de di islas."

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