Perhaps you should try some spelling variations:
"literatura a dde isaacm." » "literatura al dde isaacm.", "literatura e dde isaacm.", "literatura en dde isaacm.", "literatura a de isaac.", "literatura a de isaacm."
"literatura de v isaac." » "literatura de _ isaac.", "literatura de c isaac.", "literatura de e isaac.", "literatura del v isaac.", "literatura de vi isaac."
"literatura y de isla." » "literatura y de isaac."

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 a dde isaacm.") OR ("literatura de v isaac."))) OR ("literatura y de isla."))~.
• Removing quotes may allow a broader search: (((( literatura a dde isaacm. ) or ( literatura de v isaac. ))) or ( literatura y de isla. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("literatura a dde isaacm.") or ("literatura de v isaac."))) or ("literatura y de isla."))*.