Talvez deva tentar algumas variações de ortografia:
spinal nerve » retinal nerve (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), reserve system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
benign nerve » benign nevi (Expandir a Pesquisa), benign neck (Expandir a Pesquisa), benign nevus (Expandir a Pesquisa)
cant nerve » can nerve (Expandir a Pesquisa), giant nerve (Expandir a Pesquisa), canal nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system di (Expandir a Pesquisa), system das (Expandir a Pesquisa)
nerve can » merve can (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve cn (Expandir a Pesquisa)
i spinal » i spiral (Expandir a Pesquisa), iii spinal (Expandir a Pesquisa), i spindle (Expandir a Pesquisa)
j benign » j benigno (Expandir a Pesquisa), i benign (Expandir a Pesquisa), ii benign (Expandir a Pesquisa)
can dcs » can tdcs (Expandir a Pesquisa), can dce (Expandir a Pesquisa), can dags (Expandir a Pesquisa)
j cant » j canto (Expandir a Pesquisa), j cano (Expandir a Pesquisa), j canter (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: (((( j cant nerve system dis ) OR ( i spinal nerve can dcs ))) OR ( j benign nerve system dis ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cant nerve system dis ) or ( i spinal nerve can dcs ))) or ( j benign nerve system dis ))*.