Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
das computer » dos computer (Expandir a Pesquisa), d0s computer (Expandir a Pesquisa), does computer (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
la copra » la compra (Expandir a Pesquisa), la copa (Expandir a Pesquisa), la copia (Expandir a Pesquisa)
copra c » chopra c (Expandir a Pesquisa), copra _ (Expandir a Pesquisa), kopra c (Expandir a Pesquisa)
a clamp » c clamp (Expandir a Pesquisa), dna clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
a newts » _ newts (Expandir a Pesquisa), a news (Expandir a Pesquisa), a newt (Expandir a Pesquisa)
c near » c neal (Expandir a Pesquisa), b.c near (Expandir a Pesquisa), myc near (Expandir a Pesquisa)
a das » e das (Expandir a Pesquisa), a day (Expandir a Pesquisa), a dos (Expandir a Pesquisa)
j la » j l (Expandir a Pesquisa), j da (Expandir a Pesquisa), j li (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 la copra c near ) or ( j a clamp a newts ))) or ( a das computer based now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j la copra c near ) OR ( j a clamp a newts ))) OR ( a das computer based now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j la copra c near ) or ( j a clamp a newts ))) or ( a das computer based now ))*.