Talvez deva tentar algumas variações de ortografia:
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
current nerve » recurrent nerve (Expandir a Pesquisa), current curve (Expandir a Pesquisa), recurrent nerves (Expandir a Pesquisa)
19 current » 1 current (Expandir a Pesquisa), 2 current (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa)
nerve cyst » nerve system (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve a (Expandir a Pesquisa), nerve c (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
cat dis » cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
ai cent » i cent (Expandir a Pesquisa), ai centri (Expandir a Pesquisa), ai cheng (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: (((( 19 current nerve cat dis ) or ( ai cent nerve case dis ))) or ( j central nerve cyst due ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 19 current nerve cat dis ) OR ( ai cent nerve case dis ))) OR ( j central nerve cyst due )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 19 current nerve cat dis ) or ( ai cent nerve case dis ))) or ( j central nerve cyst due ))*.