Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
natl computer » dal computer (Expandir a Pesquisa), apl computer (Expandir a Pesquisa), call computer (Expandir a Pesquisa)
claims part » claims act (Expandir a Pesquisa), claims report (Expandir a Pesquisa), claims court (Expandir a Pesquisa)
nat clamp » dnan clamp (Expandir a Pesquisa), rnap clamp (Expandir a Pesquisa), a clamp (Expandir a Pesquisa)
clamp can » clamp a (Expandir a Pesquisa), clamp ar (Expandir a Pesquisa), clamp cum (Expandir a Pesquisa)
can never » than never (Expandir a Pesquisa), a never (Expandir a Pesquisa), has never (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
a claims » _ claims (Expandir a Pesquisa)
3 natl » 3 nacl (Expandir a Pesquisa), 3 nail (Expandir a Pesquisa), _ natl (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (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 clamp can never ) or ( j a claims part newts ))) or ( 3 natl computer based now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j nat clamp can never ) OR ( j a claims part newts ))) OR ( 3 natl computer based now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nat clamp can never ) or ( j a claims part newts ))) or ( 3 natl computer based now ))*.