Talvez deva tentar algumas variações de ortografia:
nat'l computer » nature computer (Expandir a Pesquisa), novel computer (Expandir a Pesquisa), dal computer (Expandir a Pesquisa)
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
nat computer » cat computer (Expandir a Pesquisa), fast computer (Expandir a Pesquisa), icat computer (Expandir a Pesquisa)
computer van » computer a (Expandir a Pesquisa), computer v3 (Expandir a Pesquisa), computer vi (Expandir a Pesquisa)
natl camp » al camp (Expandir a Pesquisa)
case new » cases new (Expandir a Pesquisa), cause new (Expandir a Pesquisa), caste new (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
van ngoc » tran ngoc (Expandir a Pesquisa), vu ngoc (Expandir a Pesquisa), bao ngoc (Expandir a Pesquisa)
_ nat'l » _ natal (Expandir a Pesquisa), _ natl (Expandir a Pesquisa), _ nato's (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j natali (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), e nat (Expandir a Pesquisa), j nay (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 computer case new ) or ( j natl camp can new ))) or ( _ nat'l computer van ngoc ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j nat computer case new ) OR ( j natl camp can new ))) OR ( _ nat'l computer van ngoc )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nat computer case new ) or ( j natl camp can new ))) or ( _ nat'l computer van ngoc ))*.