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 system » surgery systematic (Expandir a Pesquisa)
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
enda nerve » end nerve (Expandir a Pesquisa), tendon nerve (Expandir a Pesquisa), ending nerve (Expandir a Pesquisa)
i central » coli central (Expandir a Pesquisa), hemi central (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve a (Expandir a Pesquisa), nerve c (Expandir a Pesquisa)
cat diet » cat diets (Expandir a Pesquisa), fat diet (Expandir a Pesquisa), eat diet (Expandir a Pesquisa)
case di » case dti (Expandir a Pesquisa), case d (Expandir a Pesquisa), case de (Expandir a Pesquisa)
j enda » _ enda (Expandir a Pesquisa), r enda (Expandir a Pesquisa), o enda (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: (((( i central nerve cat diet ) or ( i current surgery system dis ))) or ( j enda nerve case di ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( i central nerve cat diet ) OR ( i current surgery system dis ))) OR ( j enda nerve case di ))*.