Perhaps you should try some spelling variations:
"springer science business model" » "stronger science business model", "spring resilience business model", "springer springe business model", "springer finance business model", "springer science using model", "springer science business models"
"river science business model" » "river finance business model", "river science using model", "river science business models", "driven science business model", "laser science business model", "cyber science business model"
"river service business model" » "river service using model", "river service business models", "rover service business model", "drivers service business model", "driven service business model"
"springer drive business model" » "springer drive business models", "printer driver business model", "springer de business model", "springer eine business model", "springer driven 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 model") OR ("river service business model"))))) OR ("springer drive 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 service business model\"))))) or (\"springer drive business model\"))".
• Removing quotes may allow a broader search: (((( springer science business model ) or ((( river science business model ) OR ( river service business model ))))) or ( springer drive business model )).
• Adding a wildcard symbol may retrieve word variants: (((("springer science business model") or ((("river science business model") OR ("river service business model"))))) or ("springer drive business model"))*.