Talvez deva tentar algumas variações de ortografia:
recurrent nerve » recurrent neural (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
a recurrent » _ recurrent (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
nerve cyst » nerve cat (Expandir a Pesquisa)
cns nerve » its nerve (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
j beta » j beth (Expandir a Pesquisa)
e cns » _ cns (Expandir a Pesquisa), a cns (Expandir a Pesquisa), 2 cns (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: (((( a recurrent nerve system dis ) or ( e cns nerve case dis ))) or ( j beta nerve cyst dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a recurrent nerve system dis ) OR ( e cns nerve case dis ))) OR ( j beta nerve cyst dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a recurrent nerve system dis ) or ( e cns nerve case dis ))) or ( j beta nerve cyst dis ))*.