Talvez deva tentar algumas variações de ortografia:
deltas served » adults served (Expandir a Pesquisa), delta survey (Expandir a Pesquisa)
spinal nerve » retinal nerve (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
system dis » system dias (Expandir a Pesquisa), system dcs (Expandir a Pesquisa), system di (Expandir a Pesquisa)
system due » system de (Expandir a Pesquisa), system der (Expandir a Pesquisa)
served cat » derived cat (Expandir a Pesquisa), served a (Expandir a Pesquisa), served hot (Expandir a Pesquisa)
i spinal » a spinal (Expandir a Pesquisa), i spiral (Expandir a Pesquisa), iii spinal (Expandir a Pesquisa)
j deltas » _ deltas (Expandir a Pesquisa), j delta (Expandir a Pesquisa), j delmas (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat diet (Expandir a Pesquisa)
a cent » a cena (Expandir a Pesquisa), a cenp (Expandir a Pesquisa), a center (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: (((( a cent nerve system dis ) or ( i spinal nerve system due ))) or ( j deltas served cat dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a cent nerve system dis ) OR ( i spinal nerve system due ))) OR ( j deltas served cat dis ))*.