Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
dal computer » small computer (Expandir a Pesquisa), local computer (Expandir a Pesquisa), vhdl computer (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa), compared can (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa), can new (Expandir a Pesquisa)
j newton » e newton (Expandir a Pesquisa), g newton (Expandir a Pesquisa), de newton (Expandir a Pesquisa)
a clamp » dna clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
clamp j » clamp _ (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
j dal » j dale (Expandir a Pesquisa), j daly (Expandir a Pesquisa), j del (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 compr can near ) or ( j a clamp j newton ))) or ( j dal computer based now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl compr can near ) OR ( j a clamp j newton ))) OR ( j dal computer based now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl compr can near ) or ( j a clamp j newton ))) or ( j dal computer based now ))*.