Perhaps you should try some spelling variations:
"literatura arabe et isla." » "literatura breve et isla.", "literatura de et isla.", "literatura e et isla.", "literatura arabe en isla.", "literatura arabe e isla.", "literatura arabe el isla.", "literatura arabe el islam."
"literatura arabe del or amable del islamm." » "literatura arabe del or amarre del islamm.", "literatura arabe del or variable del islamm.", "literatura arabes del or amable del islamm.", "literatura arabe de or amable del islamm.", "literatura arabe el or amable del islamm."

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 ((arabe del) or (amable del)) islamm.") or ("literatura arabe et isla."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literatura ((arabe del) or (amable del)) islamm.") OR ("literatura arabe et isla.")).
• Removing quotes may allow a broader search: (( literatura ((arabe del) or (amable del)) islamm. ) or ( literatura arabe et isla. )).
• Adding a wildcard symbol may retrieve word variants: (("literatura ((arabe del) or (amable del)) islamm.") or ("literatura arabe et isla."))*.