Talvez deva tentar algumas variações de ortografia:
central neuron » central neurons (Expandir a Pesquisa), central neurones (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
neuron system » neural systems (Expandir a Pesquisa)
absent nerve » bent nerve (Expandir a Pesquisa), abducent nerve (Expandir a Pesquisa), augment nerve (Expandir a Pesquisa)
system des » system der (Expandir a Pesquisa), system de (Expandir a Pesquisa), system design (Expandir a Pesquisa)
cena nerve » renal nerve (Expandir a Pesquisa), beta nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
nerve can » nerve canal (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
l absent » _ absent (Expandir a Pesquisa), 1 absent (Expandir a Pesquisa), 17 absent (Expandir a Pesquisa)
can dis » can disc (Expandir a Pesquisa), van dis (Expandir a Pesquisa), can die (Expandir a Pesquisa)
i cena » a cena (Expandir a Pesquisa), _ cena (Expandir a Pesquisa), e cena (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 des ) or ( i cena nerve can dis ))) or ( l absent nerve can dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j central neuron system des ) OR ( i cena nerve can dis ))) OR ( l absent nerve can dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j central neuron system des ) or ( i cena nerve can dis ))) or ( l absent nerve can dis ))*.