Talvez deva tentar algumas variações de ortografia:
current curve » current survey (Expandir a Pesquisa), current care (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
j recurrent » _ recurrent (Expandir a Pesquisa), a recurrent (Expandir a Pesquisa), 2 recurrent (Expandir a Pesquisa)
curve face » curve free (Expandir a Pesquisa)
bena nerve » beta nerve (Expandir a Pesquisa), bent nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
nerve can » nerve canal (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
neural a » neural _ (Expandir a Pesquisa), neural 5 (Expandir a Pesquisa), neuronal a (Expandir a Pesquisa)
face dis » face das (Expandir a Pesquisa), face dos (Expandir a Pesquisa), face dans (Expandir a Pesquisa)
can dis » can disc (Expandir a Pesquisa), van dis (Expandir a Pesquisa), can die (Expandir a Pesquisa)
j bena » j beena (Expandir a Pesquisa), j bent (Expandir a Pesquisa), j benham (Expandir a Pesquisa)
a dos » a dog (Expandir a Pesquisa), e 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": "(((( j recurrent neural a dos ) OR ( 1 current curve face dis ))) OR ( j bena nerve can dis ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j recurrent neural a dos ) OR ( 1 current curve face dis ))) OR ( j bena nerve can dis ))*.