Talvez deva tentar algumas variações de ortografia:
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
retina nerve » retinal nerve (Expandir a Pesquisa), retina novel (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
delta survey » data survey (Expandir a Pesquisa), del survey (Expandir a Pesquisa), meta survey (Expandir a Pesquisa)
system due » system der (Expandir a Pesquisa)
nerve cyst » nerve cystic (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
a retina » a retinal (Expandir a Pesquisa), da retina (Expandir a Pesquisa), na retina (Expandir a Pesquisa)
j delta » j della (Expandir a Pesquisa), j delton (Expandir a Pesquisa), j deluca (Expandir a Pesquisa)
cyst d » cyst _ (Expandir a Pesquisa), cyst a (Expandir a Pesquisa), cyst 2 (Expandir a Pesquisa)
a dye » _ dye (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 retina nerve system due ) or ((( j central nerve cyst d ) or ( j delta survey a dye ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a retina nerve system due ) OR ((( j central nerve cyst d ) OR ( j delta survey a dye )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a retina nerve system due ) or ((( j central nerve cyst d ) or ( j delta survey a dye ))))*.