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)
rat compared » rats compared (Expandir a Pesquisa), rate compared (Expandir a Pesquisa), fat compared (Expandir a Pesquisa)
tomar than » tomar tushar (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
nat tomar » hnat tomas (Expandir a Pesquisa), a tomar (Expandir a Pesquisa), al tomar (Expandir a Pesquisa)
j cost » j costa (Expandir a Pesquisa), j coast (Expandir a Pesquisa), j colt (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), a nat (Expandir a Pesquisa)
a rat » _ rat (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 cost computer based now ) or ( j nat tomar than non ))) or ( a rat compared a new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j cost computer based now ) OR ( j nat tomar than non ))) OR ( a rat compared a new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j cost computer based now ) or ( j nat tomar than non ))) or ( a rat compared a new ))*.