Perhaps you should try some spelling variations:
"motor neuronale disease" » "motor neuronal disease", "motor neutronale disease", "motor neuroale disease", "motor neuronalale disease"
"motor neurons disease" » "motor neuronal disease", "motor neutrons disease", "motor neuros disease", "motor neuronals disease"
"motor neuronse disease" » "motor neuronale disease", "motor neuronal disease", "motor neutronse disease", "motor neurose disease", "motor neuronalse disease"
"motor neuron disease" » "motor neutron disease", "motor neuro disease", "motor neuronal disease"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("motor neuronale disease") or ("motor neurons disease"))) or ("motor neuronse disease"))) or ("motor neuron disease"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("motor neuronale disease") OR ("motor neurons disease"))) OR ("motor neuronse disease"))) OR ("motor neuron disease")).
• Removing quotes may allow a broader search: (((((( motor neuronale disease ) or ( motor neurons disease ))) or ( motor neuronse disease ))) or ( motor neuron disease )).
• Adding a wildcard symbol may retrieve word variants: (((((("motor neuronale disease") or ("motor neurons disease"))) or ("motor neuronse disease"))) or ("motor neuron disease"))*.