Talvez deva tentar algumas variações de ortografia:
absent nervous » insect nervous (Expandir a Pesquisa), absent nerve (Expandir a Pesquisa), affect nervous (Expandir a Pesquisa)
ventral nerve » femoral nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
j ventral » _ ventral (Expandir a Pesquisa), a ventral (Expandir a Pesquisa), 2 ventral (Expandir a Pesquisa)
nerve can » nerve canal (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
j absent » _ absent (Expandir a Pesquisa), l absent (Expandir a Pesquisa), 17 absent (Expandir a Pesquisa)
can dis » can disc (Expandir a Pesquisa), van dis (Expandir a Pesquisa), can die (Expandir a Pesquisa)
a cent » a cena (Expandir a Pesquisa), a cenp (Expandir a Pesquisa), a center (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: (((( j ventral nerve can dis ) or ( a cent nerve case dis ))) or ( j absent nervous system dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j ventral nerve can dis ) OR ( a cent nerve case dis ))) OR ( j absent nervous system dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j ventral nerve can dis ) or ( a cent nerve case dis ))) or ( j absent nervous system dis ))*.