Talvez deva tentar algumas variações de ortografia:
natl computer » dal computer (Expandir a Pesquisa), al computer (Expandir a Pesquisa), apl computer (Expandir a Pesquisa)
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer crime (Expandir a Pesquisa)
natl compared » nacl compared (Expandir a Pesquisa), nail compared (Expandir a Pesquisa), al compared (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer a (Expandir a Pesquisa), computer code (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa)
can netw » can new (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa)
case new » cases new (Expandir a Pesquisa), cause new (Expandir a Pesquisa), caste new (Expandir a Pesquisa)
3 natl » 3 nacl (Expandir a Pesquisa), 3 nail (Expandir a Pesquisa), _ natl (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: (((( 3 natl computer can netw ) or ( 3 natl computer case new ))) or ( 3 natl compared a non ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 3 natl computer can netw ) OR ( 3 natl computer case new ))) OR ( 3 natl compared a non )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 natl computer can netw ) or ( 3 natl computer case new ))) or ( 3 natl compared a non ))*.