Talvez deva tentar algumas variações de ortografia:
recurrent nerve » recurrent neural (Expandir a Pesquisa)
deltas served » adults served (Expandir a Pesquisa), delta survey (Expandir a Pesquisa)
served system » server system (Expandir a Pesquisa), server systems (Expandir a Pesquisa), servers system (Expandir a Pesquisa)
1 recurrent » _ recurrent (Expandir a Pesquisa), a recurrent (Expandir a Pesquisa), non recurrent (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system di (Expandir a Pesquisa), system das (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
j deltas » _ deltas (Expandir a Pesquisa), j delta (Expandir a Pesquisa), j delmas (Expandir a Pesquisa)
cat dis » cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
j bent » j benet (Expandir a Pesquisa), j bento (Expandir a Pesquisa), j bena (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: (( 1 recurrent nerve cat dis ) or ((( j bent nerve cat dis ) or ( j deltas served system dis ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( 1 recurrent nerve cat dis ) OR ((( j bent nerve cat dis ) OR ( j deltas served system dis )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( 1 recurrent nerve cat dis ) or ((( j bent nerve cat dis ) or ( j deltas served system dis ))))*.