Perhaps you should try some spelling variations:
"springer service business model" » "springer serie business model", "springs service business model", "springer series business model", "springer service using model", "springer service business models"
"springer de business model" » "springer de business models", "springer e business model", "springer new business model", "springer _ business model", "springer ce business model", "springer side business model", "springer code business model"
"springer die business model" » "springer die business models", "springer eine business model", "springer like business model", "singer die business model", "springer agile business model", "springer core business model"

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 model") OR ((("springer de business model") OR ("springer die business model")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"springer service business model\") or (((\"springer de business model\") OR (\"springer die business model\"))))".
• Removing quotes may allow a broader search: (( springer service business model ) or ((( springer de business model ) OR ( springer die business model )))).
• Adding a wildcard symbol may retrieve word variants: (("springer service business model") or ((("springer de business model") OR ("springer die business model"))))*.