Talvez deva tentar algumas variações de ortografia:
ventral nerve » femoral nerve (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
crest nerve » treat nerve (Expandir a Pesquisa), crest derived (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
delta nerve » beta nerve (Expandir a Pesquisa), deltoid nerve (Expandir a Pesquisa), deltas served (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system dds (Expandir a Pesquisa)
a ventral » _ ventral (Expandir a Pesquisa), a ventura (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case did (Expandir a Pesquisa), case di (Expandir a Pesquisa)
a crest » _ crest (Expandir a Pesquisa), a crested (Expandir a Pesquisa), a creusot (Expandir a Pesquisa)
j delta » j della (Expandir a Pesquisa), j delton (Expandir a Pesquisa), j deluca (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 crest nerve system dis ) or ((( j delta nerve case due ) or ( a ventral nerve case dis ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a crest nerve system dis ) OR ((( j delta nerve case due ) OR ( a ventral nerve case dis )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a crest nerve system dis ) or ((( j delta nerve case due ) or ( a ventral nerve case dis ))))*.