Perhaps you should try some spelling variations:
"nerf model artificial neural networks" » "nerf femoral artificial neural networks", "nerf real artificial neural networks", "new model artificial neural networks", "neuron model artificial neural networks"
"neural model artificial neural network" » "neural femoral artificial neural network", "neural real artificial neural network", "neuron model artificial neural network", "normal model artificial neural network"

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: (("nerf model artificial neural networks") OR ("neural model artificial neural network"))~.
• Removing quotes may allow a broader search: (( nerf model artificial neural networks ) or ( neural model artificial neural network ))~.
• Adding a wildcard symbol may retrieve word variants: (("nerf model artificial neural networks") or ("neural model artificial neural network"))*.