Talvez deva tentar algumas variações de ortografia:
computer age » computer image (Expandir a Pesquisa), computer a (Expandir a Pesquisa), computer aided (Expandir a Pesquisa)
pi computer » ii computer (Expandir a Pesquisa), i computer (Expandir a Pesquisa), iii computer (Expandir a Pesquisa)
natl clamp » tail 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)
clamp war » clamp ar (Expandir a Pesquisa), clamp a (Expandir a Pesquisa), clamp jaw (Expandir a Pesquisa)
war news » bad news (Expandir a Pesquisa), cag news (Expandir a Pesquisa), a news (Expandir a Pesquisa)
a clamp » c clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
j pi » j p (Expandir a Pesquisa), j i (Expandir a Pesquisa), j li (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": "(((( _ natl clamp can never ) OR ( j a clamp war news ))) OR ( j pi computer age new ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( _ natl clamp can never ) OR ( j a clamp war news ))) OR ( j pi computer age new ))*.