Perhaps you should try some spelling variations:
"literatury de di isaac." » "literatura de di isaac.", "literature de di isaac.", "literatura del di isaac.", "literatury de de isaac.", "literatury de _ isaac.", "literatury de c isaac.", "literatury de mi isaac.", "literatury de si isaac."
"literatura y de islas." » "literatura y e islas.", "literatura y de isla.", "literatura y de isaias."
"literatura _ de islam." » "literatura _ del islam.", "literatura _ de isla.", "literatura _ e islam."

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura y de islas.") OR ("literatura _ de islam."))) OR ("literatury de di isaac."))~.
• Removing quotes may allow a broader search: (((( literatura y de islas. ) or ( literatura _ de islam. ))) or ( literatury de di isaac. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura y de islas.") or ("literatura _ de islam."))) or ("literatury de di isaac."))*.