Talvez deva tentar algumas variações de ortografia:
central nerve » ventral nerve (Expandir a Pesquisa), central nervous (Expandir a Pesquisa), central neural (Expandir a Pesquisa)
crest derived » host derived (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
system delay » system data (Expandir a Pesquisa), system der (Expandir a Pesquisa)
derived car » derived ccr4 (Expandir a Pesquisa), derived c (Expandir a Pesquisa), derived cd4 (Expandir a Pesquisa)
j central » 1hfj central (Expandir a Pesquisa)
neck cat » neck ct (Expandir a Pesquisa), neck can (Expandir a Pesquisa), neck cut (Expandir a Pesquisa)
i crest » i crestr (Expandir a Pesquisa), _ crest (Expandir a Pesquisa), a crest (Expandir a Pesquisa)
car due » care due (Expandir a Pesquisa), scar due (Expandir a Pesquisa), cpr due (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 nerve system delay ) or ( i crest derived car due ))) or ( _ femoral neck cat due ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j central nerve system delay ) OR ( i crest derived car due ))) OR ( _ femoral neck cat due )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j central nerve system delay ) or ( i crest derived car due ))) or ( _ femoral neck cat due ))*.