Talvez deva tentar algumas variações de ortografia:
current curves » current surveys (Expandir a Pesquisa), current survey (Expandir a Pesquisa), current current (Expandir a Pesquisa)
current curve » current survey (Expandir a Pesquisa), current care (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
benign neck » benign nevi (Expandir a Pesquisa)
curves can » curves a (Expandir a Pesquisa), curved canal (Expandir a Pesquisa)
curve cyst » curve cost (Expandir a Pesquisa), nerve cyst (Expandir a Pesquisa)
j current » j currently (Expandir a Pesquisa), j curran (Expandir a Pesquisa), j currell (Expandir a Pesquisa)
case does » cases does (Expandir a Pesquisa), cause does (Expandir a Pesquisa), case goes (Expandir a Pesquisa)
j benign » j benigno (Expandir a Pesquisa), i benign (Expandir a Pesquisa), ii benign (Expandir a Pesquisa)
can dcs » can tdcs (Expandir a Pesquisa), can dce (Expandir a Pesquisa), can dags (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j current curves can dcs ) OR ( i current curve cyst due ))) OR ( j benign neck case does ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j current curves can dcs ) or ( i current curve cyst due ))) or ( j benign neck case does ))*.