Talvez deva tentar algumas variações de ortografia:
nat computers » what computers (Expandir a Pesquisa), iet computers (Expandir a Pesquisa), can computers (Expandir a Pesquisa)
nacl computer » dal computer (Expandir a Pesquisa), apl computer (Expandir a Pesquisa), call computer (Expandir a Pesquisa)
computer aid » computer aided (Expandir a Pesquisa), computer a (Expandir a Pesquisa), computer age (Expandir a Pesquisa)
ace compared » age compared (Expandir a Pesquisa), ice compared (Expandir a Pesquisa), acute compared (Expandir a Pesquisa)
compared law » compared a (Expandir a Pesquisa), compared _ (Expandir a Pesquisa), company law (Expandir a Pesquisa)
aid nowe » aid lower (Expandir a Pesquisa), aid noise (Expandir a Pesquisa), aid power (Expandir a Pesquisa)
law now » laws now (Expandir a Pesquisa), law new (Expandir a Pesquisa), law non (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (Expandir a Pesquisa)
_ ace » _ act (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j nat computers _ non ) OR ( 3 nacl computer aid nowe ))) OR ( _ ace compared law now ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nat computers _ non ) or ( 3 nacl computer aid nowe ))) or ( _ ace compared law now ))*.