Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
cost computer » joint computer (Expandir a Pesquisa), about computer (Expandir a Pesquisa), ut computer (Expandir a Pesquisa)
nat compared » fat compared (Expandir a Pesquisa), rat compared (Expandir a Pesquisa), cat compared (Expandir a Pesquisa)
compared can » compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa), companies can (Expandir a Pesquisa)
nat computer » cat computer (Expandir a Pesquisa), fast computer (Expandir a Pesquisa), icat computer (Expandir a Pesquisa)
based near » based next (Expandir a Pesquisa), based neural (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
can netw » can new (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa)
j cost » j costa (Expandir a Pesquisa), j coast (Expandir a Pesquisa), j colt (Expandir a Pesquisa)
_ nat » _ net (Expandir a Pesquisa), _ nad (Expandir a Pesquisa), _ nab (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: (( _ nat compared can netw ) or ((( _ nat computer based near ) or ( j cost computer a new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ nat compared can netw ) OR ((( _ nat computer based near ) OR ( j cost computer a new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ nat compared can netw ) or ((( _ nat computer based near ) or ( j cost computer a new ))))*.