Talvez deva tentar algumas variações de ortografia:
natl computers » small computers (Expandir a Pesquisa), panel computers (Expandir a Pesquisa), iet computers (Expandir a Pesquisa)
computer based » computer aided (Expandir a Pesquisa)
led companies » lead companies (Expandir a Pesquisa), eu companies (Expandir a Pesquisa), listed companies (Expandir a Pesquisa)
aix computer » a computer (Expandir a Pesquisa), udx computer (Expandir a Pesquisa), tex computer (Expandir a Pesquisa)
computers a » computers _ (Expandir a Pesquisa)
companies a » companies _ (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), _ now (Expandir a Pesquisa), a nos (Expandir a Pesquisa)
3 aix » _ aix (Expandir a Pesquisa), d aix (Expandir a Pesquisa), 3 atx (Expandir a Pesquisa)
a non » _ non (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 computers a now ) or ( 3 aix computer based now ))) or ( 6j led companies a non ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl computers a now ) OR ( 3 aix computer based now ))) OR ( 6j led companies a non )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl computers a now ) or ( 3 aix computer based now ))) or ( 6j led companies a non ))*.