Talvez deva tentar algumas variações de ortografia:
unit computer » units computers (Expandir a Pesquisa), tunis computer (Expandir a Pesquisa), ut computer (Expandir a Pesquisa)
natl computer » dal computer (Expandir a Pesquisa), apl computer (Expandir a Pesquisa), call computer (Expandir a Pesquisa)
wart compared » warts compared (Expandir a Pesquisa), ward compared (Expandir a Pesquisa), art compared (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer case (Expandir a Pesquisa), computer a (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
can now » can new (Expandir a Pesquisa), can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
a unit » a united (Expandir a Pesquisa)
j wart » j ward (Expandir a Pesquisa), j watt (Expandir a Pesquisa), j ware (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 computer can now ) or ( a unit computer can now ))) or ( j wart compared a new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl computer can now ) OR ( a unit computer can now ))) OR ( j wart compared a new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl computer can now ) or ( a unit computer can now ))) or ( j wart compared a new ))*.