Talvez deva tentar algumas variações de ortografia:
delays nerve » delayed nerve (Expandir a Pesquisa), delays derived (Expandir a Pesquisa), delays neuron (Expandir a Pesquisa)
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)
benth nerve » bent nerve (Expandir a Pesquisa), both nerve (Expandir a Pesquisa), seventh nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
g7 delays » 27 delays (Expandir a Pesquisa), 17 delays (Expandir a Pesquisa), 176 delays (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)
l benth » l benato (Expandir a Pesquisa), ex benth (Expandir a Pesquisa)
nerve a » nerve _ (Expandir a Pesquisa)
a dis » a dos (Expandir a Pesquisa), a des (Expandir a Pesquisa), a dia (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 case dis ) or ( l benth nerve a dis ))) or ( g7 delays nerve system dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a center nerve case dis ) OR ( l benth nerve a dis ))) OR ( g7 delays nerve system dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a center nerve case dis ) or ( l benth nerve a dis ))) or ( g7 delays nerve system dis ))*.