Perhaps you should try some spelling variations:
"literature arab _ plan." » "literatura arabe _ plan.", "literature early _ plan.", "literatura para _ plan."
"literatura del del islam." » "literatura de del islam.", "literatura en del islam.", "literatura del el islam.", "literatura edel del islam.", "literatura del de islam.", "literatura del dem islam.", "literatura del dele islam.", "literatura del delta islam.", "literatura dpiel del islam."
"literatura el del islam." » "literatura en del islam.", "literatura e del islam.", "literatura de del islam.", "literatura el el islam.", "literatura el dele islam.", "literatura el delta islam.", "literatura piel del 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 el del islam.") or ("literatura del del islam."))) or ("literature arab _ plan."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura el del islam.") OR ("literatura del del islam."))) OR ("literature arab _ plan.")).
• Removing quotes may allow a broader search: (((( literatura el del islam. ) or ( literatura del del islam. ))) or ( literature arab _ plan. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura el del islam.") or ("literatura del del islam."))) or ("literature arab _ plan."))*.