Perhaps you should try some spelling variations:
"springer science business model" » "river science business model", "springer springe business model", "bigger science business model", "springer finance business model", "springer service business model", "springer science business models"
"stronger science using model" » "stronger evidence using model", "stronger stance using model", "astronomy science using model", "stronger science ising model", "stronger 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 ("stronger science using model")).
• Removing quotes may allow a broader search: (( springer science business model ) or ( stronger science using model )).
• Adding a wildcard symbol may retrieve word variants: (("springer science business model") or ("stronger science using model"))*.