Talvez deva tentar algumas variações de ortografia:
central neural » central nepal (Expandir a Pesquisa), central neurons (Expandir a Pesquisa)
current nerve » recurrent nerve (Expandir a Pesquisa), current curve (Expandir a Pesquisa), recurrent nerves (Expandir a Pesquisa)
neural cest » neural crest (Expandir a Pesquisa), neural cost (Expandir a Pesquisa), neural rest (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
j current » j currently (Expandir a Pesquisa), ac current (Expandir a Pesquisa), j curran (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve a (Expandir a Pesquisa), nerve c (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
cat diet » cat diets (Expandir a Pesquisa), fat diet (Expandir a Pesquisa), eat diet (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
cest due » cyst due (Expandir a Pesquisa), cost due (Expandir a Pesquisa), test due (Expandir a Pesquisa)
i cent » i cento (Expandir a Pesquisa), ai cent (Expandir a Pesquisa), ii cent (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j current nerve cat diet ) OR ( i cent nerve case dis ))) OR ( j central neural cest due ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j current nerve cat diet ) OR ( i cent nerve case dis ))) OR ( j central neural cest due ))*.