Talvez deva tentar algumas variações de ortografia:
computer code » computer model (Expandir a Pesquisa), computer models (Expandir a Pesquisa), computer crime (Expandir a Pesquisa)
udx computer » _ computer (Expandir a Pesquisa), a computer (Expandir a Pesquisa)
nail comp » nail bomb (Expandir a Pesquisa), nail company (Expandir a Pesquisa), nail complex (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
nacl co2 » nacl co (Expandir a Pesquisa)
code new » codes new (Expandir a Pesquisa), code net (Expandir a Pesquisa), code nec2 (Expandir a Pesquisa)
co2 can » co2 dan (Expandir a Pesquisa), co2 case (Expandir a Pesquisa), co2 dans (Expandir a Pesquisa)
3 nail » _ nail (Expandir a Pesquisa), a nail (Expandir a Pesquisa), 5 nail (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
j udx » j udd (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: (((( 3 nail comp can new ) OR ( 3 nacl co2 can new ))) OR ( j udx computer code new ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 nail comp can new ) or ( 3 nacl co2 can new ))) or ( j udx computer code new ))*.