Perhaps you should try some spelling variations:
"springer finance business models" » "einer finance business models", "merger finance business models", "pardner finance business models"
"springer springe business model" » "spring spring business model", "springer series business model", "springer spaniel business model", "springer bridge business model", "springer price business model", "springer drainage business model"
"springer single business model" » "springer eine business model", "springer silke business model", "springer science business model", "springer simple business model", "springer wrangle business model", "springer using 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 finance business models") OR ((("springer springe business model") OR ("springer single business model")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"springer finance business models\") or (((\"springer springe business model\") OR (\"springer single business model\"))))".
• Removing quotes may allow a broader search: (( springer finance business models ) or ((( springer springe business model ) OR ( springer single business model )))).
• Adding a wildcard symbol may retrieve word variants: (("springer finance business models") or ((("springer springe business model") OR ("springer single business model"))))*.