Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
natl computer » dal computer (Expandir a Pesquisa), apl computer (Expandir a Pesquisa), call computer (Expandir a Pesquisa)
arm compared » army compared (Expandir a Pesquisa), harm compared (Expandir a Pesquisa), arm compare (Expandir a Pesquisa)
clamp can » clamp a (Expandir a Pesquisa), clamp ar (Expandir a Pesquisa), clamp cum (Expandir a Pesquisa)
can newts » can new (Expandir a Pesquisa), can newly (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
j nasr » j nash (Expandir a Pesquisa), a nasr (Expandir a Pesquisa), _ nasr (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
c arm » _ arm (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( c arm compared _ netw ) OR ( j nasr clamp can newts ))) OR ( j natl computer based now ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( c arm compared _ netw ) or ( j nasr clamp can newts ))) or ( j natl computer based now ))*.