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

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