Talvez deva tentar algumas variações de ortografia:
nat computers » what computers (Expandir a Pesquisa), iet computers (Expandir a Pesquisa), can computers (Expandir a Pesquisa)
cast compared » cost compared (Expandir a Pesquisa), test compared (Expandir a Pesquisa), ct compared (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa)
computers a » computers _ (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), phan ngoc (Expandir a Pesquisa)
c cases » c causes (Expandir a Pesquisa), c case (Expandir a Pesquisa), c casey (Expandir a Pesquisa)
c cast » c case (Expandir a Pesquisa), c caat (Expandir a Pesquisa), c casa (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
_ nat » _ net (Expandir a Pesquisa), _ nad (Expandir a Pesquisa), _ nab (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: (((( c cast compared can ngoc ) or ( c cases compared can ngoc ))) or ( _ nat computers a netw ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( c cast compared can ngoc ) OR ( c cases compared can ngoc ))) OR ( _ nat computers a netw )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( c cast compared can ngoc ) or ( c cases compared can ngoc ))) or ( _ nat computers a netw ))*.