Talvez deva tentar algumas variações de ortografia:
central neural » central nepal (Expandir a Pesquisa), central neurons (Expandir a Pesquisa)
neural system » neural systems (Expandir a Pesquisa), neural stem (Expandir a Pesquisa), neuron system (Expandir a Pesquisa)
current nerve » recurrent nerve (Expandir a Pesquisa), current curve (Expandir a Pesquisa), recurrent nerves (Expandir a Pesquisa)
ventral nerve » femoral nerve (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
a ventral » a ventura (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve a (Expandir a Pesquisa), nerve c (Expandir a Pesquisa)
system d » system de (Expandir a Pesquisa), system der (Expandir a Pesquisa), system des (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (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 neural system d ) or ( i current nerve case dis ))) or ( a ventral nerve cat due ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j central neural system d ) OR ( i current nerve case dis ))) OR ( a ventral nerve cat due )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j central neural system d ) or ( i current nerve case dis ))) or ( a ventral nerve cat due ))*.