Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
natl compared » nacl compared (Expandir a Pesquisa), nail compared (Expandir a Pesquisa), acl compared (Expandir a Pesquisa)
compared had » compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa), compared can (Expandir a Pesquisa)
il computer » dal computer (Expandir a Pesquisa), vhdl computer (Expandir a Pesquisa)
had never » have never (Expandir a Pesquisa), a never (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)
a clamp » dna clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
3 il » _ il (Expandir a Pesquisa), 3 yl (Expandir a Pesquisa), e il (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 natl compared had never ) or ( j a clamp can newts ))) or ( 3 il computer based now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl compared had never ) OR ( j a clamp can newts ))) OR ( 3 il computer based now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl compared had never ) or ( j a clamp can newts ))) or ( 3 il computer based now ))*.