Talvez deva tentar algumas variações de ortografia:
computer can » computers can (Expandir a Pesquisa), computer case (Expandir a Pesquisa), computer a (Expandir a Pesquisa)
nacl compare » nacl compared (Expandir a Pesquisa), acl compared (Expandir a Pesquisa), penal compare (Expandir a Pesquisa)
ai computer » api computer (Expandir a Pesquisa), a computer (Expandir a Pesquisa), ii computer (Expandir a Pesquisa)
compare a » compare _ (Expandir a Pesquisa)
md units » sd units (Expandir a Pesquisa), bed units (Expandir a Pesquisa), led units (Expandir a Pesquisa)
can netw » can new (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa)
j nacl » _ nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa), a nacl (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ now (Expandir a Pesquisa)
j ai » j a (Expandir a Pesquisa), j i (Expandir a Pesquisa), j li (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: (((( md units computers _ netb ) or ( j ai computer can netw ))) or ( j nacl compare a now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( md units computers _ netb ) OR ( j ai computer can netw ))) OR ( j nacl compare a now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( md units computers _ netb ) or ( j ai computer can netw ))) or ( j nacl compare a now ))*.