Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
2 computer » do computer (Expandir a Pesquisa), dos computer (Expandir a Pesquisa), dal computer (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa), compared can (Expandir a Pesquisa)
can never » than never (Expandir a Pesquisa), a never (Expandir a Pesquisa), had never (Expandir a Pesquisa)
clamp cum » clamp m (Expandir a Pesquisa), clamp can (Expandir a Pesquisa), clamp em (Expandir a Pesquisa)
cum newts » can newts (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
a clamp » dna clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (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 never ) or ( j a clamp cum newts ))) or ( j 2 computer based now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl compr can never ) OR ( j a clamp cum newts ))) OR ( j 2 computer based now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl compr can never ) or ( j a clamp cum newts ))) or ( j 2 computer based now ))*.