Talvez deva tentar algumas variações de ortografia:
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
benign nerve » benign nevi (Expandir a Pesquisa), benign neck (Expandir a Pesquisa), benign beale (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa)
nerve scan » nerve can (Expandir a Pesquisa), nerve scar (Expandir a Pesquisa), nerve stain (Expandir a Pesquisa)
i central » coli central (Expandir a Pesquisa), hemi central (Expandir a Pesquisa)
j benign » j benigno (Expandir a Pesquisa), _ benign (Expandir a Pesquisa), a benign (Expandir a Pesquisa)
scan due » man due (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 central nerve system dis ) or ((( j benign nerve cyst due ) or ( j benign nerve scan due ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( i central nerve system dis ) OR ((( j benign nerve cyst due ) OR ( j benign nerve scan due )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( i central nerve system dis ) or ((( j benign nerve cyst due ) or ( j benign nerve scan due ))))*.