Talvez deva tentar algumas variações de ortografia:
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
nacl complex » nac56 complex (Expandir a Pesquisa), al complex (Expandir a Pesquisa), all complex (Expandir a Pesquisa)
complex can » complex case (Expandir a Pesquisa), complex care (Expandir a Pesquisa), complex cell (Expandir a Pesquisa)
nacl comp » nacl co (Expandir a Pesquisa), nacl co2 (Expandir a Pesquisa)
case ngoc » cao ngoc (Expandir a Pesquisa), case non (Expandir a Pesquisa), cam ngoc (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), phan ngoc (Expandir a Pesquisa)
can non » dan non (Expandir a Pesquisa), than non (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), a nacl (Expandir a Pesquisa), 3.5 nacl (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 nacl comp can ngoc ) OR ( m nacl complex can non ))) OR ( j a computer case ngoc ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 nacl comp can ngoc ) or ( m nacl complex can non ))) or ( j a computer case ngoc ))*.