Perhaps you should try some spelling variations:
"springer springe business model" » "spring spring business model", "springer spaniel business model", "springer bridge business model", "springer price business model", "springer single business model", "springer springe business models"
"springer series business model" » "springer services business model", "springer serious business model", "springer energies business model", "springer series business models"
"springer server business model" » "printer server business model", "springer serie business model", "speicher server business model", "springer services business model", "springer service business model", "springer better business model", "springer server 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 springe business model") OR ((("springer series business model") OR ("springer server business model")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"springer springe business model\") or (((\"springer series business model\") OR (\"springer server business model\"))))".
• Removing quotes may allow a broader search: (( springer springe business model ) or ((( springer series business model ) OR ( springer server business model )))).
• Adding a wildcard symbol may retrieve word variants: (("springer springe business model") or ((("springer series business model") OR ("springer server business model"))))*.