Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
tex computer » udx computer (Expandir a Pesquisa), after computer (Expandir a Pesquisa), held computer (Expandir a Pesquisa)
nail camp » nail can (Expandir a Pesquisa), nail case (Expandir a Pesquisa), nail alp (Expandir a Pesquisa)
camp tran » camp than (Expandir a Pesquisa), camp strain (Expandir a Pesquisa), camp bryan (Expandir a Pesquisa)
nacl camp » cl camp (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
3 nail » _ nail (Expandir a Pesquisa), a nail (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
j tex » j ten (Expandir a Pesquisa), j ter (Expandir a Pesquisa), _ tex (Expandir a Pesquisa)
ngoc » ngo (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 camp tran ngoc ) or ( 3 nacl camp tran ngoc ))) or ( j tex computer based now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 3 nail camp tran ngoc ) OR ( 3 nacl camp tran ngoc ))) OR ( j tex computer based now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 nail camp tran ngoc ) or ( 3 nacl camp tran ngoc ))) or ( j tex computer based now ))*.