Perhaps you should try some spelling variations:
"springer springe business model" » "spring spring business model", "springer series business model", "springer spaniel business model", "springer bridge business model", "springer price business model", "springer single business model"
"merger finance business model" » "ledger finance business model", "smarter finance business model", "border finance business model"
"merger finance business models" » "ledger finance business models", "smarter finance business models", "border finance 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: (((("merger finance business model") OR ("merger finance business models"))) OR ("springer springe business model"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"merger finance business model\") OR (\"merger finance business models\"))) or (\"springer springe business model\"))*".
• Removing quotes may allow a broader search: (((( merger finance business model ) OR ( merger finance business models ))) or ( springer springe business model ))*.