Perhaps you should try some spelling variations:
"springer single business models" » "springer springe business models", "springer eine business models", "springer silke business models", "springer simple business models", "springer wrangle business models", "springer using business models"
"merger finance business model" » "ledger finance business model", "smarter finance business model", "border finance business model"
"river science using mobile" » "driven science using mobile", "laser science using mobile", "cyber 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: (((("merger finance business model") OR ("river science using mobile"))) OR ("springer single business models"))*.
• Removing quotes may allow a broader search: (((( merger finance business model ) or ( river science using mobile ))) or ( springer single business models ))*.