Talvez deva tentar algumas variações de ortografia:
central neuron » central neurons (Expandir a Pesquisa), central neurones (Expandir a Pesquisa), central neuronal (Expandir a Pesquisa)
neuron system » neural systems (Expandir a Pesquisa)
system das » system dias (Expandir a Pesquisa), systems das (Expandir a Pesquisa), system des (Expandir a Pesquisa)
cent nerve » recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
cat dead » cat cad (Expandir a Pesquisa), cat de (Expandir a Pesquisa), cat did (Expandir a Pesquisa)
ai cent » i cent (Expandir a Pesquisa), ii cent (Expandir a Pesquisa), ai centri (Expandir a Pesquisa)
j bent » j benet (Expandir a Pesquisa), j bento (Expandir a Pesquisa), j bena (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (((( j central neuron system das ) or ( ai cent nerve cat dead ))) or ( j bent nerve cat dead ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j central neuron system das ) OR ( ai cent nerve cat dead ))) OR ( j bent nerve cat dead )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j central neuron system das ) or ( ai cent nerve cat dead ))) or ( j bent nerve cat dead ))*.