Talvez deva tentar algumas variações de ortografia:
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), reserve system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
cent nerve » crest nerve (Expandir a Pesquisa), current nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa)
system des » system der (Expandir a Pesquisa), system de (Expandir a Pesquisa), system design (Expandir a Pesquisa)
system das » system dias (Expandir a Pesquisa), systems das (Expandir a Pesquisa), system dan (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (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)
j cent » a cent (Expandir a Pesquisa), i cent (Expandir a Pesquisa), j center (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: (((( j cent nerve system des ) or ( j central nerve system das ))) or ( j bent nerve case dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j cent nerve system des ) OR ( j central nerve system das ))) OR ( j bent nerve case dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cent nerve system des ) or ( j central nerve system das ))) or ( j bent nerve case dis ))*.