Talvez deva tentar algumas variações de ortografia:
prevent neural » prevents neuronal (Expandir a Pesquisa), prevent viral (Expandir a Pesquisa), prevent neonatal (Expandir a Pesquisa)
deltas served » adults served (Expandir a Pesquisa), delta survey (Expandir a Pesquisa)
neural case » neutral case (Expandir a Pesquisa), neural causes (Expandir a Pesquisa), neural phase (Expandir a Pesquisa)
neural age » neutral age (Expandir a Pesquisa), neural image (Expandir a Pesquisa), neuronal age (Expandir a Pesquisa)
served can » served a (Expandir a Pesquisa), services can (Expandir a Pesquisa), servet ozcan (Expandir a Pesquisa)
j prevent » j prevents (Expandir a Pesquisa), 3 prevent (Expandir a Pesquisa), a prevent (Expandir a Pesquisa)
i prevent » i prevents (Expandir a Pesquisa), ii prevent (Expandir a Pesquisa), 3 prevent (Expandir a Pesquisa)
case dis » case disc (Expandir a Pesquisa), case di (Expandir a Pesquisa), case does (Expandir a Pesquisa)
age disc » aged disc (Expandir a Pesquisa), large disc (Expandir a Pesquisa), age discus (Expandir a Pesquisa)
j deltas » _ deltas (Expandir a Pesquisa), j delta (Expandir a Pesquisa), j delmas (Expandir a Pesquisa)
can dig » can ding (Expandir a Pesquisa), can die (Expandir a Pesquisa), can diet (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 prevent neural case dis ) or ( i prevent neural age disc ))) or ( j deltas served can dig ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j prevent neural case dis ) OR ( i prevent neural age disc ))) OR ( j deltas served can dig )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j prevent neural case dis ) or ( i prevent neural age disc ))) or ( j deltas served can dig ))*.