Perhaps you should try some spelling variations:
"european concept history so." » "european concepts history so.", "europe concept history so.", "european conceptual history so.", "european concise history so."
"european context history self." » "european court history self.", "european contents history self.", "european context history siege.", "european context history some.", "european context history soil."

Try widening your search to All Fields.

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: (("european concept history so.") OR ("european context history self.")).
• Removing quotes may allow a broader search: (( european concept history so. ) or ( european context history self. )).
• Adding a wildcard symbol may retrieve word variants: (("european concept history so.") or ("european context history self."))*.