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