Talvez deva tentar algumas variações de ortografia:
national computer » national committee (Expandir a Pesquisa), international computer (Expandir a Pesquisa), personal computer (Expandir a Pesquisa)
computer based » computer aided (Expandir a Pesquisa)
computer code » computer model (Expandir a Pesquisa), computer models (Expandir a Pesquisa), computer crime (Expandir a Pesquisa)
dal computer » dental computer (Expandir a Pesquisa), small computer (Expandir a Pesquisa), local computer (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
code new » codes new (Expandir a Pesquisa), code net (Expandir a Pesquisa), node new (Expandir a Pesquisa)
a clamp » _ clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
a newts » _ newts (Expandir a Pesquisa), a news (Expandir a Pesquisa), a newt (Expandir a Pesquisa)
j dal » j dale (Expandir a Pesquisa), j daly (Expandir a Pesquisa), j dahl (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 dal computer code new ) or ( j a clamp a newts ))) or ( a national computer based now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j dal computer code new ) OR ( j a clamp a newts ))) OR ( a national computer based now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j dal computer code new ) or ( j a clamp a newts ))) or ( a national computer based now ))*.