Talvez deva tentar algumas variações de ortografia:
serve system » server system (Expandir a Pesquisa), servo system (Expandir a Pesquisa), service system (Expandir a Pesquisa)
spinal nerve » retinal nerve (Expandir a Pesquisa)
benign nerve » benign nevi (Expandir a Pesquisa), benign neck (Expandir a Pesquisa), benign beale (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), reserve system (Expandir a Pesquisa), drive system (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)
can dags » can data (Expandir a Pesquisa), can dai (Expandir a Pesquisa), can da (Expandir a Pesquisa)
j benign » j benigno (Expandir a Pesquisa), do benign (Expandir a Pesquisa), j benito (Expandir a Pesquisa)
j can » j cano (Expandir a Pesquisa), j cant (Expandir a Pesquisa), _ can (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 can serve system dis ) OR ( i spinal nerve can dags ))) OR ( j benign nerve system dis ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j can serve system dis ) or ( i spinal nerve can dags ))) or ( j benign nerve system dis ))*.