Talvez deva tentar algumas variações de ortografia:
current curve » current survey (Expandir a Pesquisa), current care (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
dental nerves » dental nerve (Expandir a Pesquisa), renal nerves (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa)
letter nerve » letter nurse (Expandir a Pesquisa), matter nerve (Expandir a Pesquisa), letter nervous (Expandir a Pesquisa)
nerves case » nervosa case (Expandir a Pesquisa), nerves based (Expandir a Pesquisa), nerve cases (Expandir a Pesquisa)
curve cyst » curve cost (Expandir a Pesquisa), nerve cyst (Expandir a Pesquisa)
j current » j currently (Expandir a Pesquisa), ad current (Expandir a Pesquisa), j curran (Expandir a Pesquisa)
j letter » bj letter (Expandir a Pesquisa), cj letter (Expandir a Pesquisa), j letters (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
j dental » j delta (Expandir a Pesquisa), j dent (Expandir a Pesquisa), j deal (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 letter nerve case dis ) OR ( j current curve cyst dis ))) OR ( j dental nerves case dis ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j letter nerve case dis ) OR ( j current curve cyst dis ))) OR ( j dental nerves case dis ))*.