Talvez deva tentar algumas variações de ortografia:
early computer » early computed (Expandir a Pesquisa), daily computer (Expandir a Pesquisa), early compacted (Expandir a Pesquisa)
natl compared » nacl compared (Expandir a Pesquisa), nail compared (Expandir a Pesquisa), acl compared (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer case (Expandir a Pesquisa), computer a (Expandir a Pesquisa)
cpt clamp » cpt camp (Expandir a Pesquisa), c clamp (Expandir a Pesquisa), ap clamp (Expandir a Pesquisa)
clamp ar » clamp a (Expandir a Pesquisa), clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
j early » j earley (Expandir a Pesquisa), j earl (Expandir a Pesquisa), j earle (Expandir a Pesquisa)
can non » dan non (Expandir a Pesquisa), than non (Expandir a Pesquisa)
_ natl » _ natal (Expandir a Pesquisa), _ nat'l (Expandir a Pesquisa), _ nato (Expandir a Pesquisa)
j cpt » _ cpt (Expandir a Pesquisa), i cpt (Expandir a Pesquisa), 8 cpt (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 cpt clamp ar (netw OR net) ) or ((( j early computer can non ) or ( _ natl compared _ now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j cpt clamp ar (netw OR net) ) OR ((( j early computer can non ) OR ( _ natl compared _ now )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j cpt clamp ar (netw OR net) ) or ((( j early computer can non ) or ( _ natl compared _ now ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j cpt clamp ar (netw OR net) ) or ((( j early computer can non ) or ( _ natl compared _ now ))))*.