Perhaps you should try some spelling variations:
professionalisering education » professionalism education, professional education
professionals education » professional education, professionalism education, professions education

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: ((professionalisering education) OR (professionals education)).
• Adding a wildcard symbol may retrieve word variants: ((professionalisering education) or (professionals education))*.