Perhaps you should try some spelling variations:
"springer bridging business model" » "springer building business model", "springer changing business model", "springer managing business model", "spider bridging business model", "bridge bridging business model", "miner bridging business model", "springer bridging business models"
"river science business model" » "river finance business model", "river service business model", "river science using model", "river science business models", "laser science business model", "cyber science business model", "der science business model"
"driven science business model" » "driven finance business model", "driven service business model", "driven science using model", "driven science 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: (((("river science business model") OR ("driven science business model"))) OR ("springer bridging business model")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"river science business model\") OR (\"driven science business model\"))) or (\"springer bridging business model\"))".
• Removing quotes may allow a broader search: (((( river science business model ) OR ( driven science business model ))) or ( springer bridging business model )).
• Adding a wildcard symbol may retrieve word variants: (((("river science business model") OR ("driven science business model"))) or ("springer bridging business model"))*.