Talvez deva tentar algumas variações de ortografia:
central neural » central neurons (Expandir a Pesquisa)
ventral nerve » femoral nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), reserve system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
neural cyst » neural cest (Expandir a Pesquisa), neural cost (Expandir a Pesquisa), neural crest (Expandir a Pesquisa)
benet nerve » bent nerve (Expandir a Pesquisa), detect nerve (Expandir a Pesquisa), absent nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system di (Expandir a Pesquisa), system das (Expandir a Pesquisa)
a ventral » _ ventral (Expandir a Pesquisa), rat ventral (Expandir a Pesquisa), a ventura (Expandir a Pesquisa)
i central » coli central (Expandir a Pesquisa), hemi central (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa)
j benet » j bennett (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benesi (Expandir a Pesquisa)
cat dis » cat diets (Expandir a Pesquisa), cat diet (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: (((( a ventral nerve system dis ) or ( i central neural cyst dis ))) or ( j benet nerve cat dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a ventral nerve system dis ) OR ( i central neural cyst dis ))) OR ( j benet nerve cat dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a ventral nerve system dis ) or ( i central neural cyst dis ))) or ( j benet nerve cat dis ))*.