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"
"neutron real artificial neural network" » "neutron can artificial neural network", "neutron femoral artificial neural network", "neutron star artificial neural network"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("neutron real artificial neural network") or ("neural model artificial neural networks"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("neutron real artificial neural network") OR ("neural model artificial neural networks")).
• Removing quotes may allow a broader search: (( neutron real artificial neural network ) or ( neural model artificial neural networks )).
• Adding a wildcard symbol may retrieve word variants: (("neutron real artificial neural network") or ("neural model artificial neural networks"))*.