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 business models"
"river science business model" » "river finance business model", "river service business model", "river science business models", "driven science business model", "laser science business model", "cyber science business model"
"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", "springer bridge business models"
"river science using model" » "driven science using model", "laser science using model", "cyber science using model", "river science ising model", "river science using mobile"

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