Talvez deva tentar algumas variações de ortografia:
recurrent curve » recurrence curve (Expandir a Pesquisa), recurrent nerve (Expandir a Pesquisa), recurrent caries (Expandir a Pesquisa)
current curve » current survey (Expandir a Pesquisa), current care (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
curve cone » curve can (Expandir a Pesquisa), curve cost (Expandir a Pesquisa), curve change (Expandir a Pesquisa)
dent nerve » bent nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa), dentin nerve (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve cut (Expandir a Pesquisa)
curve cat » curve can (Expandir a Pesquisa), curve data (Expandir a Pesquisa), curve cost (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
j dent » j deng (Expandir a Pesquisa)
disk » risk (Expandir a Pesquisa), disc (Expandir a Pesquisa), dirk (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 curve cat dis ) OR ( 1 current curve cone disk ))) OR ( j dent nerve cyst due ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a recurrent curve cat dis ) OR ( 1 current curve cone disk ))) OR ( j dent nerve cyst due ))*.