Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
dale computer » dal computer (Expandir a Pesquisa), maple computer (Expandir a Pesquisa), scale computer (Expandir a Pesquisa)
clamp can » clamp a (Expandir a Pesquisa), clamp ar (Expandir a Pesquisa), clamp cum (Expandir a Pesquisa)
can fever » can never (Expandir a Pesquisa), can fewer (Expandir a Pesquisa), can sever (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
l clamp » _ clamp (Expandir a Pesquisa), c clamp (Expandir a Pesquisa), 1 clamp (Expandir a Pesquisa)
a clamp » _ clamp (Expandir a Pesquisa), dna clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
clamp j » clamp _ (Expandir a Pesquisa)
j newts » _ newts (Expandir a Pesquisa), j newton (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j l clamp can fever ) OR ( j a clamp j newts ))) OR ( j dale computer based now ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j l clamp can fever ) OR ( j a clamp j newts ))) OR ( j dale computer based now ))*.