Talvez deva tentar algumas variações de ortografia:
ventral nerve » femoral nerve (Expandir a Pesquisa)
bent nervous » cental nervous (Expandir a Pesquisa), center nervous (Expandir a Pesquisa), latent nervous (Expandir a Pesquisa)
get nervous » gut nervous (Expandir a Pesquisa), rat nervous (Expandir a Pesquisa), new nervous (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
i ventral » ii ventral (Expandir a Pesquisa), _ ventral (Expandir a Pesquisa), a ventral (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
j bent » j benet (Expandir a Pesquisa), j bento (Expandir a Pesquisa), j bena (Expandir a Pesquisa)
a get » _ get (Expandir a Pesquisa), a gut (Expandir a Pesquisa), a gel (Expandir a Pesquisa)
c dcs » c dos (Expandir a Pesquisa), _ dcs (Expandir a Pesquisa), c das (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( a get nervous system dis ) OR ( i ventral nerve c dcs ))) OR ( j bent nervous system dis ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a get nervous system dis ) OR ( i ventral nerve c dcs ))) OR ( j bent nervous system dis ))*.