Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
narr compared » nmr compared (Expandir a Pesquisa), marrow compared (Expandir a Pesquisa), laser compared (Expandir a Pesquisa)
nao compared » faso compared (Expandir a Pesquisa), ago compared (Expandir a Pesquisa), o compared (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa)
nat computer » cat computer (Expandir a Pesquisa), fast computer (Expandir a Pesquisa), icat computer (Expandir a Pesquisa)
can nextw » can new (Expandir a Pesquisa), can newts (Expandir a Pesquisa), can net (Expandir a Pesquisa)
based new » based next (Expandir a Pesquisa), based near (Expandir a Pesquisa), based n (Expandir a Pesquisa)
can next » can text (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa)
j narr » l narr (Expandir a Pesquisa), j nair (Expandir a Pesquisa), j nare (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (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: (((( e nao compared can next ) or ( j narr compared can nextw ))) or ( j nat computer based new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( e nao compared can next ) OR ( j narr compared can nextw ))) OR ( j nat computer based new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( e nao compared can next ) or ( j narr compared can nextw ))) or ( j nat computer based new ))*.