Perhaps you should try some spelling variations:
"neural model artificial neural networks" » "neural femoral artificial neural networks", "neuron model artificial neural networks", "nerf model artificial neural networks", "normal model artificial neural networks"
"neurons real artificial neural network" » "neurons can artificial neural network", "neurons femoral artificial neural network", "neuronal real 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: (("neurons real artificial neural network") OR ("neural model artificial neural networks"))~.
• Removing quotes may allow a broader search: (( neurons real artificial neural network ) or ( neural model artificial neural networks ))~.
• Adding a wildcard symbol may retrieve word variants: (("neurons real artificial neural network") or ("neural model artificial neural networks"))*.