Talvez deva tentar algumas variações de ortografia:
central neural » central nepal (Expandir a Pesquisa), central neurons (Expandir a Pesquisa)
neural canal » central canal (Expandir a Pesquisa), neural signal (Expandir a Pesquisa), femoral canal (Expandir a Pesquisa)
crest nerve » treat nerve (Expandir a Pesquisa), crest derived (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), cns nerve (Expandir a Pesquisa)
canal tdcs » canal ticks (Expandir a Pesquisa), can tdcs (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
i central » coli central (Expandir a Pesquisa)
j crest » _ crest (Expandir a Pesquisa), a crest (Expandir a Pesquisa), 5 crest (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat diet (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((( j crest nerve cat dis ) OR ( i cent nerve cat due ))) OR ( i central neural canal tdcs ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j crest nerve cat dis ) OR ( i cent nerve cat due ))) OR ( i central neural canal tdcs ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j crest nerve cat dis ) OR ( i cent nerve cat due ))) OR ( i central neural canal tdcs ))*.