Talvez deva tentar algumas variações de ortografia:
recurrent nerve » recurrent neural (Expandir a Pesquisa)
delayed neural » delayed neuronal (Expandir a Pesquisa), delayed cerebral (Expandir a Pesquisa)
a recurrent » _ recurrent (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa)
case disc » cause disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case dose (Expandir a Pesquisa)
stem dis » stem does (Expandir a Pesquisa), stem de (Expandir a Pesquisa), stem dna (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
i bent » i benth (Expandir a Pesquisa), i benet (Expandir a Pesquisa), i bento (Expandir a Pesquisa)
c dis » c dias (Expandir a Pesquisa), c disc (Expandir a Pesquisa), c dos (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": "(((( a recurrent nerve case disc ) OR ( i bent nerve c dis ))) OR ( _ delayed neural stem dis ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a recurrent nerve case disc ) OR ( i bent nerve c dis ))) OR ( _ delayed neural stem dis ))*.