Talvez deva tentar algumas variações de ortografia:
current nerve » recurrent nerve (Expandir a Pesquisa), current curve (Expandir a Pesquisa), recurrent nerves (Expandir a Pesquisa)
absent nerve » bent nerve (Expandir a Pesquisa), abducent nerve (Expandir a Pesquisa), augment nerve (Expandir a Pesquisa)
central ade » central andes (Expandir a Pesquisa), central grade (Expandir a Pesquisa), central trade (Expandir a Pesquisa)
ade system » cade system (Expandir a Pesquisa), age system (Expandir a Pesquisa), ace system (Expandir a Pesquisa)
system dcs » system dcus (Expandir a Pesquisa), system sdcs (Expandir a Pesquisa), system des (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
j absent » _ absent (Expandir a Pesquisa), l absent (Expandir a Pesquisa), 17 absent (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 central ade system dcs ) OR ( i current nerve cat dis ))) OR ( j absent nerve cat dis ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j central ade system dcs ) OR ( i current nerve cat dis ))) OR ( j absent nerve cat dis ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j central ade system dcs ) OR ( i current nerve cat dis ))) OR ( j absent nerve cat dis ))*.