Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
natl computer » dal computer (Expandir a Pesquisa), apl computer (Expandir a Pesquisa), call computer (Expandir a Pesquisa)
nacl compared » acl compared (Expandir a Pesquisa), nail compared (Expandir a Pesquisa), small compared (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer case (Expandir a Pesquisa), computer a (Expandir a Pesquisa)
aix computer » a computer (Expandir a Pesquisa), udx computer (Expandir a Pesquisa), tex computer (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
can now » can new (Expandir a Pesquisa), can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
j nacl » _ nacl (Expandir a Pesquisa), a nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
_ aix » _ air (Expandir a Pesquisa), _ aid (Expandir a Pesquisa), _ aim (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 natl computer can now ) or ( _ aix computer based now ))) or ( j nacl compared can now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl computer can now ) OR ( _ aix computer based now ))) OR ( j nacl compared can now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl computer can now ) or ( _ aix computer based now ))) or ( j nacl compared can now ))*.