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