Perhaps you should try some spelling variations:
"springer science business model" » "stronger science business model", "springer springe business model", "bigger science business model", "springer finance business model", "springer service business model", "springer science using model"
"river science business models" » "river finance business models", "river service business models", "river science using models", "driven science business models", "laser science business models", "cyber science business models"
"springer bridge business model" » "stringer bridge business model", "springer springe business model", "sprinkle bridge business model", "springer bring business model", "springer bridging business model", "springer drive 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 science business model") OR ("river science business models"))) OR ("springer bridge business model")).
• Removing quotes may allow a broader search: (((( springer science business model ) or ( river science business models ))) or ( springer bridge business model )).
• Adding a wildcard symbol may retrieve word variants: (((("springer science business model") or ("river science business models"))) or ("springer bridge business model"))*.