Talvez deva tentar algumas variações de ortografia:
aix computers » aix computer (Expandir a Pesquisa), aids computers (Expandir a Pesquisa), a computers (Expandir a Pesquisa)
computers vu » computers v2 (Expandir a Pesquisa), computers v3 (Expandir a Pesquisa), computers v6 (Expandir a Pesquisa)
oil company » oil companies (Expandir a Pesquisa)
company v » company _ (Expandir a Pesquisa), company a (Expandir a Pesquisa)
nacl co » nacl co2 (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa), nacl kno (Expandir a Pesquisa)
v ngoc » vo ngoc (Expandir a Pesquisa), _ ngoc (Expandir a Pesquisa), b ngoc (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), a nacl (Expandir a Pesquisa)
3 oil » 3 oils (Expandir a Pesquisa), _ oil (Expandir a Pesquisa), l oil (Expandir a Pesquisa)
co vu » co cu (Expandir a Pesquisa), do vu (Expandir a Pesquisa), ho vu (Expandir a Pesquisa)
_ aix » _ air (Expandir a Pesquisa), _ aid (Expandir a Pesquisa), _ aim (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 oil company v ngoc ) or ( 3 nacl co vu ngoc ))) or ( _ aix computers vu ngoc ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 3 oil company v ngoc ) OR ( 3 nacl co vu ngoc ))) OR ( _ aix computers vu ngoc )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 oil company v ngoc ) or ( 3 nacl co vu ngoc ))) or ( _ aix computers vu ngoc ))*.