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)
fast computer » best computer (Expandir a Pesquisa), fast computing (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)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
based next » based nested (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
j cost » j costa (Expandir a Pesquisa), j coast (Expandir a Pesquisa), j colt (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: (( a rat compared a netw ) or ((( j cost computer based next ) or ( _ fast computer a new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a rat compared a netw ) OR ((( j cost computer based next ) OR ( _ fast computer a new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a rat compared a netw ) or ((( j cost computer based next ) or ( _ fast computer a new ))))*.