Perhaps you should try some spelling variations:
"springer service business mit" » "springer serie business mit", "springer series business mit", "spring services business mit", "springer service using mit", "springer service business man"
"stronger science business men" » "springer science business men", "stronger evidence business men", "stronger stance business men", "stronger finance business men", "stronger science using men"
"stronger science business model" » "springer science business model", "stronger evidence business model", "stronger stance business model", "stronger finance business model", "stronger science using model", "stronger science business models"

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: (("springer service business mit") OR ((("stronger science business men") OR ("stronger science business model")))).
• Removing quotes may allow a broader search: (( springer service business mit ) or ((( stronger science business men ) or ( stronger science business model )))).
• Adding a wildcard symbol may retrieve word variants: (("springer service business mit") or ((("stronger science business men") or ("stronger science business model"))))*.