Perhaps you should try some spelling variations:
"springer bridging business model" » "spider bridging business model", "bridge bridging business model", "miner bridging business model", "springer building business model", "springer driving business model", "springer doing business model", "springer bridging business models"
"laser science business model" » "laser finance business model", "laser service business model", "laser science using model", "laser 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: (("laser science business model") OR ("springer bridging business model")).
• Removing quotes may allow a broader search: (( laser science business model ) or ( springer bridging business model )).
• Adding a wildcard symbol may retrieve word variants: (("laser science business model") or ("springer bridging business model"))*.