Talvez deva tentar algumas variações de ortografia:
ventral nerve » femoral nerve (Expandir a Pesquisa)
absent native » present native (Expandir a Pesquisa), absent nails (Expandir a Pesquisa), absent nerve (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), reserve system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
nerve cases » nerve case (Expandir a Pesquisa), nerve caused (Expandir a Pesquisa), nerve changes (Expandir a Pesquisa)
native cas9 » native case (Expandir a Pesquisa), inactive cas9 (Expandir a Pesquisa), native class (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system di (Expandir a Pesquisa), system das (Expandir a Pesquisa)
a ventral » _ ventral (Expandir a Pesquisa), a ventura (Expandir a Pesquisa)
cases dos » cases does (Expandir a Pesquisa), cases do (Expandir a Pesquisa), bases dos (Expandir a Pesquisa)
j absent » _ absent (Expandir a Pesquisa), l absent (Expandir a Pesquisa), 17 absent (Expandir a Pesquisa)
cas9 do » cas9 drop (Expandir a Pesquisa), cas9 dna (Expandir a Pesquisa), cas9 hdr (Expandir a Pesquisa)
i cent » i cento (Expandir a Pesquisa), ai cent (Expandir a Pesquisa), ii cent (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: (((( i cent nerve system dis ) or ( a ventral nerve cases dos ))) or ( j absent native cas9 do ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( i cent nerve system dis ) OR ( a ventral nerve cases dos ))) OR ( j absent native cas9 do )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( i cent nerve system dis ) or ( a ventral nerve cases dos ))) or ( j absent native cas9 do ))*.