Perhaps you should try some spelling variations:
"motor neuronale disease" » "motor neuronal disease", "motor neutronale disease", "motor neuroale disease", "motor neuronalale disease"
"motor neuroale disease" » "motor neural disease", "motor neuronal disease"
"motor neuron disease" » "motor neutron disease", "motor neuro disease", "motor neuronal disease"
"motor neurons disease" » "motor neutrons disease", "motor neuros disease", "motor neuronals 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 neuroale disease"))) or ((("motor neuron disease") or ("motor neurons disease"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("motor neuronale disease") OR ("motor neuroale disease"))) OR ((("motor neuron disease") OR ("motor neurons disease")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"motor neuronale disease\") OR (\"motor neuroale disease\"))) or (((\"motor neuron disease\") or (\"motor neurons disease\"))))".
• Removing quotes may allow a broader search: (((( motor neuronale disease ) OR ( motor neuroale disease ))) or ((( motor neuron disease ) or ( motor neurons disease )))).
• Adding a wildcard symbol may retrieve word variants: (((("motor neuronale disease") OR ("motor neuroale disease"))) or ((("motor neuron disease") or ("motor neurons disease"))))*.