Perhaps you should try some spelling variations:
"literature arab _ plan." » "literatura arabe _ plan.", "literature early _ plan.", "literatura para _ plan."
"literatura pie del islam." » "literatura cine del islam.", "literatura de del islam.", "literatura por del islam.", "literatura pie el islam.", "literatura pie de islam.", "literatura pide del islam.", "literatura pi5e del islam.", "literatura piy del islam."
"literatura e del islam." » "literatura de del islam.", "literatura en 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 pie del islam.") or ("literatura e del islam."))) or ("literature arab _ plan."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura pie del islam.") OR ("literatura e del islam."))) OR ("literature arab _ plan.")).
• Removing quotes may allow a broader search: (((( literatura pie del islam. ) or ( literatura e del islam. ))) or ( literature arab _ plan. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura pie del islam.") or ("literatura e del islam."))) or ("literature arab _ plan."))*.