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