Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
natl compared » nacl compared (Expandir a Pesquisa), nail compared (Expandir a Pesquisa), acl compared (Expandir a Pesquisa)
compared base » compared case (Expandir a Pesquisa), compared cases (Expandir a Pesquisa), compares bases (Expandir a Pesquisa)
natl computer » dal computer (Expandir a Pesquisa), apl computer (Expandir a Pesquisa), call computer (Expandir a Pesquisa)
base near » based near (Expandir a Pesquisa), bases near (Expandir a Pesquisa), base year (Expandir a Pesquisa)
clamp men » clamp me (Expandir a Pesquisa), clamped men (Expandir a Pesquisa), clamp gene (Expandir a Pesquisa)
men newly » women newly (Expandir a Pesquisa), men new (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
a clamp » _ clamp (Expandir a Pesquisa), c clamp (Expandir a Pesquisa), dna clamp (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
3 natl » 3 nacl (Expandir a Pesquisa), 3 nail (Expandir a Pesquisa), _ natl (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 compared base near ) or ( j a clamp men newly ))) or ( 3 natl computer based now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl compared base near ) OR ( j a clamp men newly ))) OR ( 3 natl computer based now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl compared base near ) or ( j a clamp men newly ))) or ( 3 natl computer based now ))*.