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 service business model"
"springer science using model" » "stronger science using model", "spring resilience using model", "springer springe using model", "springer science ising model", "springer science using mobile"
"river science business model" » "river finance business model", "river service business model", "driven science business model", "laser science business model", "cyber science business model"
"spring spring business models" » "spring sharing business models", "spring scoring business models", "spring during business models", "using spring 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 science business model") OR ("river science business model"))) OR ("springer science using model"))) OR ("spring spring business models")).
• Removing quotes may allow a broader search: (((((( springer science business model ) or ( river science business model ))) or ( springer science using model ))) or ( spring spring business models )).
• Adding a wildcard symbol may retrieve word variants: (((((("springer science business model") or ("river science business model"))) or ("springer science using model"))) or ("spring spring business models"))*.