Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
nail computer » daily computer (Expandir a Pesquisa), dal computer (Expandir a Pesquisa), il computer (Expandir a Pesquisa)
clamp war » clamp ar (Expandir a Pesquisa), clamp a (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
natl amp » atl am (Expandir a Pesquisa), al amp (Expandir a Pesquisa), dall amp (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa), can new (Expandir a Pesquisa)
amp can » amp camp (Expandir a Pesquisa)
war new » war news (Expandir a Pesquisa), wars new (Expandir a Pesquisa), year new (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nat (Expandir a Pesquisa), j natali (Expandir a Pesquisa)
j nail » j nair (Expandir a Pesquisa), j naik (Expandir a Pesquisa), j naim (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl amp can near ) OR ( j _ clamp war new ))) OR ( j nail computer based now ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl amp can near ) or ( j _ clamp war new ))) or ( j nail computer based now ))*.