Talvez deva tentar algumas variações de ortografia:
central nerve » central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa), femoral nerve (Expandir a Pesquisa)
ventral nerve » femoral nerve (Expandir a Pesquisa)
center nurse » center nurses (Expandir a Pesquisa), letter nurse (Expandir a Pesquisa), cancer nurse (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
nurse cat » nurse can (Expandir a Pesquisa), nurse cadet (Expandir a Pesquisa), nurse can't (Expandir a Pesquisa)
j ventral » _ ventral (Expandir a Pesquisa), a ventral (Expandir a Pesquisa), 2 ventral (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
2 center » a center (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
case di » case dti (Expandir a Pesquisa), case d (Expandir a Pesquisa), case de (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: (((( 2 center nurse cat dis ) or ( j ventral nerve case di ))) or ( j central nerve system dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 2 center nurse cat dis ) OR ( j ventral nerve case di ))) OR ( j central nerve system dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 2 center nurse cat dis ) or ( j ventral nerve case di ))) or ( j central nerve system dis ))*.