Talvez deva tentar algumas variações de ortografia:
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
acm computer » a computer (Expandir a Pesquisa), um computer (Expandir a Pesquisa), uym computer (Expandir a Pesquisa)
claims mar » claims may (Expandir a Pesquisa), claims made (Expandir a Pesquisa), claims more (Expandir a Pesquisa)
natl comp » al comp (Expandir a Pesquisa), natalia comp (Expandir a Pesquisa)
mar newts » war news (Expandir a Pesquisa), can newts (Expandir a Pesquisa), mar new (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
a claims » _ claims (Expandir a Pesquisa)
case new » cases new (Expandir a Pesquisa), cause new (Expandir a Pesquisa), caste new (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
a acm » ad acm (Expandir a Pesquisa), _ acm (Expandir a Pesquisa), a aco (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 comp can new ) or ( j a claims mar newts ))) or ( a acm computer case new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl comp can new ) OR ( j a claims mar newts ))) OR ( a acm computer case new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl comp can new ) or ( j a claims mar newts ))) or ( a acm computer case new ))*.