Talvez deva tentar algumas variações de ortografia:
recurrence curve » recurrence cure (Expandir a Pesquisa), recurrence free (Expandir a Pesquisa), recurrence case (Expandir a Pesquisa)
current curve » current survey (Expandir a Pesquisa), current care (Expandir a Pesquisa), current nerve (Expandir a Pesquisa)
j recurrence » a recurrence (Expandir a Pesquisa), c recurrence (Expandir a Pesquisa), b recurrence (Expandir a Pesquisa)
curve system » curve systems (Expandir a Pesquisa), nerve system (Expandir a Pesquisa), cave system (Expandir a Pesquisa)
benet nerve » bent nerve (Expandir a Pesquisa), detect nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
curve cyst » curve cost (Expandir a Pesquisa), nerve cyst (Expandir a Pesquisa)
system dcs » system dcus (Expandir a Pesquisa), system sdcs (Expandir a Pesquisa), system des (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
j benet » j bennett (Expandir a Pesquisa), j benito (Expandir a Pesquisa), j benesi (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: (((( j recurrence curve cyst dis ) OR ( 2 current curve system dcs ))) OR ( j benet nerve _ dis ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j recurrence curve cyst dis ) OR ( 2 current curve system dcs ))) OR ( j benet nerve _ dis ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j recurrence curve cyst dis ) OR ( 2 current curve system dcs ))) OR ( j benet nerve _ dis ))*.