Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
aix computer » udx computer (Expandir a Pesquisa), tex computer (Expandir a Pesquisa), il computer (Expandir a Pesquisa)
nail case » nails case (Expandir a Pesquisa), nail can (Expandir a Pesquisa)
nacl camp » nacl cacl (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
case can » cases can (Expandir a Pesquisa), case con (Expandir a Pesquisa), case case (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), phan ngoc (Expandir a Pesquisa)
camp ca » camp a (Expandir a Pesquisa), camp c (Expandir a Pesquisa), camp camp (Expandir a Pesquisa)
ca ngoc » cao ngoc (Expandir a Pesquisa), cam ngoc (Expandir a Pesquisa), cua ngoc (Expandir a Pesquisa)
3 nail » 3 nacl (Expandir a Pesquisa)
j aix » _ aix (Expandir a Pesquisa), j aim (Expandir a Pesquisa), d aix (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: (((( 3 nail case can ngoc ) or ( m nacl camp ca ngoc ))) or ( j aix computer based now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 3 nail case can ngoc ) OR ( m nacl camp ca ngoc ))) OR ( j aix computer based now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 nail case can ngoc ) or ( m nacl camp ca ngoc ))) or ( j aix computer based now ))*.