Perhaps you should try some spelling variations:
"literature early et islam." » "literature study et islam.", "literature latin et islam.", "literatura al et islam.", "literature early evo islam.", "literature early new islam.", "literature earl e islam.", "literature early el islam.", "literature early e islam.", "literature early e islas."
"literatura en de islam." » "literatura de de islam.", "literatura espana de islam.", "literatura en de isla.", "literatura en e islam.", "literatura en de ilam."
"literatura en del islam." » "literatura de del islam.", "literatura espana del islam.", "literatura en el islam."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("literature early et islam.") or ((("literatura en de islam.") OR ("literatura en del islam."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("literature early et islam.") OR ((("literatura en de islam.") OR ("literatura en del islam.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"literature early et islam.\") or (((\"literatura en de islam.\") OR (\"literatura en del islam.\"))))".
• Removing quotes may allow a broader search: (( literature early et islam. ) or ((( literatura en de islam. ) OR ( literatura en del islam. )))).
• Adding a wildcard symbol may retrieve word variants: (("literature early et islam.") or ((("literatura en de islam.") OR ("literatura en del islam."))))*.