Talvez deva tentar algumas variações de ortografia:
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer crime (Expandir a Pesquisa)
nail computer » daily computer (Expandir a Pesquisa), dal computer (Expandir a Pesquisa), il computer (Expandir a Pesquisa)
natl camp » al camp (Expandir a Pesquisa)
clamp can » clamp a (Expandir a Pesquisa), clamp ar (Expandir a Pesquisa), clamp cum (Expandir a Pesquisa)
can newts » can new (Expandir a Pesquisa), can newly (Expandir a Pesquisa)
camp can » camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa), comp can (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa), can new (Expandir a Pesquisa)
case new » cases new (Expandir a Pesquisa), cause new (Expandir a Pesquisa), caste new (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nat (Expandir a Pesquisa), j natali (Expandir a Pesquisa)
j nail » _ nail (Expandir a Pesquisa), a nail (Expandir a Pesquisa), 3 nail (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 natl camp can near ) OR ( j _ clamp can newts ))) OR ( j nail computer case new ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl camp can near ) OR ( j _ clamp can newts ))) OR ( j nail computer case new ))*.