Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
duty computer » dutch computer (Expandir a Pesquisa), uy computer (Expandir a Pesquisa), adults computer (Expandir a Pesquisa)
clamp can » clamp a (Expandir a Pesquisa), clamp ar (Expandir a Pesquisa), clamp cum (Expandir a Pesquisa)
can newts » can newly (Expandir a Pesquisa)
based new » based next (Expandir a Pesquisa), based near (Expandir a Pesquisa), based n (Expandir a Pesquisa)
camp can » camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa), comp can (Expandir a Pesquisa)
et camp » et champ (Expandir a Pesquisa), et campi (Expandir a Pesquisa), et campo (Expandir a Pesquisa)
a clamp » dna clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
a duty » _ duty (Expandir a Pesquisa)
j et » j e (Expandir a Pesquisa), j st (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 et camp can new ) or ( j a clamp can newts ))) or ( a duty computer based new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j et camp can new ) OR ( j a clamp can newts ))) OR ( a duty computer based new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j et camp can new ) or ( j a clamp can newts ))) or ( a duty computer based new ))*.