Talvez deva tentar algumas variações de ortografia:
current surgery » recurrent surgery (Expandir a Pesquisa), urgent surgery (Expandir a Pesquisa), current survey (Expandir a Pesquisa)
surgery systems » surgery system (Expandir a Pesquisa), surgery systematic (Expandir a Pesquisa), surgical systems (Expandir a Pesquisa)
benito nerve » benign nerve (Expandir a Pesquisa), benito narvaez (Expandir a Pesquisa), benito eva (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa)
systems do » systems data (Expandir a Pesquisa)
j benito » de benito (Expandir a Pesquisa), j benitez (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case did (Expandir a Pesquisa), case di (Expandir a Pesquisa)
nerve c » nerve cn (Expandir a Pesquisa), nerve co (Expandir a Pesquisa), nerve ct (Expandir a Pesquisa)
i bent » i benth (Expandir a Pesquisa), i benet (Expandir a Pesquisa), i bento (Expandir a Pesquisa)
c diet » c dietz (Expandir a Pesquisa), hc diet (Expandir a Pesquisa), c diez (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: (((( i bent nerve c diet ) OR ( i current surgery systems do ))) OR ( j benito nerve case dis ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( i bent nerve c diet ) or ( i current surgery systems do ))) or ( j benito nerve case dis ))*.