Talvez deva tentar algumas variações de ortografia:
current active » current activated (Expandir a Pesquisa), concurrent active (Expandir a Pesquisa), current practice (Expandir a Pesquisa)
canal nerve » cranial nerve (Expandir a Pesquisa), clonal nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
benzo nerve » bent nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
nerve can » nerve canal (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case did (Expandir a Pesquisa), case does (Expandir a Pesquisa)
i canal » i canales (Expandir a Pesquisa)
case di » case did (Expandir a Pesquisa), case dti (Expandir a Pesquisa), case de (Expandir a Pesquisa)
j benzo » j bento (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benton (Expandir a Pesquisa)
can die » can diet (Expandir a Pesquisa), van die (Expandir a Pesquisa), aan die (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (((( _ current active case dis ) or ( i canal nerve case di ))) or ( j benzo nerve can die ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( _ current active case dis ) OR ( i canal nerve case di ))) OR ( j benzo nerve can die ))*.