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)
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)
bena drive » belt drive (Expandir a Pesquisa), bet drive (Expandir a Pesquisa), ena drives (Expandir a Pesquisa)
system de » system der (Expandir a Pesquisa), system delay (Expandir a Pesquisa)
i spinal » _ spinal (Expandir a Pesquisa), a spinal (Expandir a Pesquisa), i spiral (Expandir a Pesquisa)
i benet » i bennett (Expandir a Pesquisa), i behnert (Expandir a Pesquisa), i benito (Expandir a Pesquisa)
j bena » j bela (Expandir a Pesquisa), j bent (Expandir a Pesquisa), j benham (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 benet nerve system dis ) or ( i spinal nerve system dis ))) or ( j bena drive system de ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( i benet nerve system dis ) OR ( i spinal nerve system dis ))) OR ( j bena drive system de )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( i benet nerve system dis ) or ( i spinal nerve system dis ))) or ( j bena drive system de ))*.