Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
best computer » iet computer (Expandir a Pesquisa), cost computer (Expandir a Pesquisa), fast computer (Expandir a Pesquisa)
nat compared » fat compared (Expandir a Pesquisa), rat compared (Expandir a Pesquisa), cat compared (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
based new » based next (Expandir a Pesquisa), based near (Expandir a Pesquisa), based n (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
3 best » a best (Expandir a Pesquisa), 1 best (Expandir a Pesquisa), 2 best (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e 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 nat compared a netw ) or ((( 3 best computer based new ) or ( _ best computer a new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j nat compared a netw ) OR ((( 3 best computer based new ) OR ( _ best computer a new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j nat compared a netw ) or ((( 3 best computer based new ) or ( _ best computer a new ))))*.