Perhaps you should try some spelling variations:
"motor neurone disease" » "motor neurons disease", "motor neuronal disease", "motor neutrone disease", "motor neuronse disease", "motor neuroe disease"
"motor neuroe disease" » "motor neuro disease"
"motor neuronsse disease" » "motor neurons disease", "motor neutronsse disease", "motor neuronssse disease", "motor neurosse disease"
"motor neuron disease" » "motor neutron disease", "motor neurons disease", "motor neuro 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 neurone disease") or ("motor neuroe disease"))) or ("motor neuronsse disease"))) or ("motor neuron disease"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("motor neurone disease") OR ("motor neuroe disease"))) OR ("motor neuronsse disease"))) OR ("motor neuron disease")).
• Removing quotes may allow a broader search: (((((( motor neurone disease ) or ( motor neuroe disease ))) or ( motor neuronsse disease ))) or ( motor neuron disease )).
• Adding a wildcard symbol may retrieve word variants: (((((("motor neurone disease") or ("motor neuroe disease"))) or ("motor neuronsse disease"))) or ("motor neuron disease"))*.