Talvez deva tentar algumas variações de ortografia:
deltas observed » deltas served (Expandir a Pesquisa), adults observed (Expandir a Pesquisa), ducts observed (Expandir a Pesquisa)
central neural » central nepal (Expandir a Pesquisa), central neurons (Expandir a Pesquisa)
observed case » observed cases (Expandir a Pesquisa), observed care (Expandir a Pesquisa), observed change (Expandir a Pesquisa)
cena nerve » renal nerve (Expandir a Pesquisa), beta nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
neural cat » neural cost (Expandir a Pesquisa), neural cest (Expandir a Pesquisa), neural co (Expandir a Pesquisa)
nerve can » nerve canal (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
i central » coli central (Expandir a Pesquisa)
cat diets » fat diets (Expandir a Pesquisa), salt diets (Expandir a Pesquisa), cattle diets (Expandir a Pesquisa)
j deltas » _ deltas (Expandir a Pesquisa), j delta (Expandir a Pesquisa), j delmas (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
can die » can diet (Expandir a Pesquisa), van die (Expandir a Pesquisa), aan die (Expandir a Pesquisa)
a cena » na cena (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 cena nerve can die ) or ( i central neural cat diets ))) or ( j deltas observed case dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a cena nerve can die ) OR ( i central neural cat diets ))) OR ( j deltas observed case dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a cena nerve can die ) or ( i central neural cat diets ))) or ( j deltas observed case dis ))*.