Talvez deva tentar algumas variações de ortografia:
comparing close » comparing dose (Expandir a Pesquisa), comparing case (Expandir a Pesquisa), comparing choice (Expandir a Pesquisa)
nat computers » what computers (Expandir a Pesquisa), iet computers (Expandir a Pesquisa), can computers (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
nacl computer » dal computer (Expandir a Pesquisa), apl computer (Expandir a Pesquisa), call computer (Expandir a Pesquisa)
al comparing » trial comparing (Expandir a Pesquisa), al comparison (Expandir a Pesquisa), iii comparing (Expandir a Pesquisa)
computer ii » computers ii (Expandir a Pesquisa), computer im (Expandir a Pesquisa), computer i (Expandir a Pesquisa)
close now » close non (Expandir a Pesquisa), close down (Expandir a Pesquisa), close n (Expandir a Pesquisa)
can now » can new (Expandir a Pesquisa), can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
ii none » ii non (Expandir a Pesquisa), ii note (Expandir a Pesquisa), ii node (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (Expandir a Pesquisa)
j al » j a (Expandir a Pesquisa), j l (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 nat computers can now ) or ( 3 nacl computer ii none ))) or ( j al comparing close now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j nat computers can now ) OR ( 3 nacl computer ii none ))) OR ( j al comparing close now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nat computers can now ) or ( 3 nacl computer ii none ))) or ( j al comparing close now ))*.