Talvez deva tentar algumas variações de ortografia:
ventral nerve » femoral nerve (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
absent nerve » bent nerve (Expandir a Pesquisa), abducent nerve (Expandir a Pesquisa), augment nerve (Expandir a Pesquisa)
cenp nerve » cns nerve (Expandir a Pesquisa), can nerve (Expandir a Pesquisa), cgrp nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
nerve van » nerve vas (Expandir a Pesquisa), herve van (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
a ventral » _ ventral (Expandir a Pesquisa), a ventura (Expandir a Pesquisa)
_ absent » _ absence (Expandir a Pesquisa)
van dis » van die (Expandir a Pesquisa), van diest (Expandir a Pesquisa), van dijk (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ cenp nerve system dis ) OR ((( _ absent nerve van dis ) OR ( a ventral nerve system dis ))))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ cenp nerve system dis ) or ((( _ absent nerve van dis ) or ( a ventral nerve system dis ))))*.