Perhaps you should try some spelling variations:
"motor neuroe disease" » "motor neuro disease"
"motor neurons disease" » "motor neuronal disease", "motor neutrons disease", "motor neuros disease", "motor neuronals disease"
"motor neuronals disease" » "motor neuronal disease", "motor neutronals disease", "motor neuroals disease", "motor neuronalals 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 neuroe disease") or ((("motor neurons disease") or ("motor neuronals disease"))))) or ("motor neuron disease"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("motor neuroe disease") OR ((("motor neurons disease") OR ("motor neuronals disease"))))) OR ("motor neuron disease")).
• Removing quotes may allow a broader search: (((( motor neuroe disease ) or ((( motor neurons disease ) or ( motor neuronals disease ))))) or ( motor neuron disease )).
• Adding a wildcard symbol may retrieve word variants: (((("motor neuroe disease") or ((("motor neurons disease") or ("motor neuronals disease"))))) or ("motor neuron disease"))*.