Talvez deva tentar algumas variações de ortografia:
recurrent nerve » recurrent neural (Expandir a Pesquisa)
delayed nerve » delayed neural (Expandir a Pesquisa), delayed interval (Expandir a Pesquisa)
letter nerve » letter nurse (Expandir a Pesquisa), matter nerve (Expandir a Pesquisa), letter nervous (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
j recurrent » a recurrent (Expandir a Pesquisa), 1 recurrent (Expandir a Pesquisa), 2 recurrent (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
j delayed » _ delayed (Expandir a Pesquisa), a delayed (Expandir a Pesquisa), 16 delayed (Expandir a Pesquisa)
j letter » bj letter (Expandir a Pesquisa), cj letter (Expandir a Pesquisa), j letters (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat diet (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 letter nerve cat dis ) or ( j recurrent nerve cat dis ))) or ( j delayed nerve system dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j letter nerve cat dis ) OR ( j recurrent nerve cat dis ))) OR ( j delayed nerve system dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j letter nerve cat dis ) or ( j recurrent nerve cat dis ))) or ( j delayed nerve system dis ))*.