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