Talvez deva tentar algumas variações de ortografia:
ventral nerve » femoral nerve (Expandir a Pesquisa)
nerve system » drive system (Expandir a Pesquisa)
get nervous » gut nervous (Expandir a Pesquisa), rat nervous (Expandir a Pesquisa), new nervous (Expandir a Pesquisa)
benet nerve » bent nerve (Expandir a Pesquisa), detect nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
system das » system dias (Expandir a Pesquisa), systems das (Expandir a Pesquisa), system des (Expandir a Pesquisa)
i ventral » ii ventral (Expandir a Pesquisa), _ ventral (Expandir a Pesquisa), a ventral (Expandir a Pesquisa)
system de » system der (Expandir a Pesquisa), system delay (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
j benet » j bennett (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benesi (Expandir a Pesquisa)
i get » _ get (Expandir a Pesquisa), i gel (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: (((( i get nervous system das ) or ( i ventral nerve system de ))) or ( j benet nerve case dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( i get nervous system das ) OR ( i ventral nerve system de ))) OR ( j benet nerve case dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( i get nervous system das ) or ( i ventral nerve system de ))) or ( j benet nerve case dis ))*.