Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
nat computers » what computers (Expandir a Pesquisa), iet computers (Expandir a Pesquisa), can computers (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
unit compared » ct compared (Expandir a Pesquisa), diet compared (Expandir a Pesquisa)
compared case » compared can (Expandir a Pesquisa), companies case (Expandir a Pesquisa), comparing case (Expandir a Pesquisa)
apl computer » maple computer (Expandir a Pesquisa), call computer (Expandir a Pesquisa), dal computer (Expandir a Pesquisa)
case non » cause non (Expandir a Pesquisa), case note (Expandir a Pesquisa), phase non (Expandir a Pesquisa)
can non » dan non (Expandir a Pesquisa), than non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
3 unit » _ unit (Expandir a Pesquisa), a unit (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (Expandir a Pesquisa)
1 apl » _ apl (Expandir a Pesquisa), 1 ap1 (Expandir a Pesquisa), 1 all (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 nat computers can non ) or ( 1 apl computer based non ))) or ( 3 unit compared case non ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j nat computers can non ) OR ( 1 apl computer based non ))) OR ( 3 unit compared case non )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nat computers can non ) or ( 1 apl computer based non ))) or ( 3 unit compared case non ))*.