Perhaps you should try some spelling variations:
stronger evidence » strong evidence
springer science » springer springe, bigger science, dinner science
stronger science » stronger stance, astronomy science, stronger guidance
business model » business models
river science » driven science, laser science, cyber science

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