Talvez deva tentar algumas variações de ortografia:
center nerve » cancer nerve (Expandir a Pesquisa), center nurse (Expandir a Pesquisa), letter 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)
benign nerve » benign nevi (Expandir a Pesquisa), benign neck (Expandir a Pesquisa), benign beale (Expandir a Pesquisa)
system de » system der (Expandir a Pesquisa), system delay (Expandir a Pesquisa)
17 absent » _ absent (Expandir a Pesquisa), c1 absent (Expandir a Pesquisa), eo absent (Expandir a Pesquisa)
a center » a century (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
j benign » j benigno (Expandir a Pesquisa), _ benign (Expandir a Pesquisa), a benign (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: (( a center nerve system de ) or ((( 17 absent nerve case dis ) or ( j benign nerve case dis ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a center nerve system de ) OR ((( 17 absent nerve case dis ) OR ( j benign nerve case dis )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a center nerve system de ) or ((( 17 absent nerve case dis ) or ( j benign nerve case dis ))))*.