Perhaps you should try some spelling variations:
"literature arab _ plan." » "literatura arabe _ plan.", "literature early _ plan.", "literatura para _ plan."
"literatura en dele islam." » "literatura de dele islam.", "literatura espana dele islam.", "literatura den dele islam.", "literatura deln dele islam.", "literatura en el islam.", "literatura en de islam.", "literatura el dele islam.", "literatura en del islam.", "literatura en delhi islam."
"literatura e del islam." » "literatura de del islam.", "literatura del del islam.", "literatura e el islam.", "literatura 5e del islam.", "literatura y 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 en dele islam.") or ("literatura e del islam."))) or ("literature arab _ plan."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura en dele islam.") OR ("literatura e del islam."))) OR ("literature arab _ plan.")).
• Removing quotes may allow a broader search: (((( literatura en dele islam. ) or ( literatura e del islam. ))) or ( literature arab _ plan. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura en dele islam.") or ("literatura e del islam."))) or ("literature arab _ plan."))*.