Perhaps you should try some spelling variations:
"frontiers in european entrepreneurship serve" » "frontiers in women entrepreneurship serve", "frontiers in european entrepreneurship serves", "frontiers in european entrepreneurship services", "frontiers in european entrepreneurship serena"
"Frontiers in European entrepreneurship theories" » "Frontiers in European entrepreneurship theorie", "Frontiers in European entrepreneurship theory", "Frontiers in European entrepreneurship through"
"Frontiers in European entrepreneurship series" » "Frontiers in European entrepreneurship serves", "Frontiers in European entrepreneurship services", "Frontiers in European entrepreneurship studies"

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: (((("Frontiers in European entrepreneurship series") OR ("Frontiers in European entrepreneurship theories"))) OR ("frontiers in european entrepreneurship serve")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"Frontiers in European entrepreneurship series\") OR (\"Frontiers in European entrepreneurship theories\"))) or (\"frontiers in european entrepreneurship serve\"))".
• Removing quotes may allow a broader search: (((( Frontiers in European entrepreneurship series ) OR ( Frontiers in European entrepreneurship theories ))) or ( frontiers in european entrepreneurship serve )).
• Adding a wildcard symbol may retrieve word variants: (((("Frontiers in European entrepreneurship series") OR ("Frontiers in European entrepreneurship theories"))) or ("frontiers in european entrepreneurship serve"))*.