Talvez deva tentar algumas variações de ortografia:
computers dan » computers can (Expandir a Pesquisa), computers data (Expandir a Pesquisa), computers a (Expandir a Pesquisa)
aix computers » aix computer (Expandir a Pesquisa), aids computers (Expandir a Pesquisa), a computers (Expandir a Pesquisa)
oil company » oil companies (Expandir a Pesquisa)
company war » company car (Expandir a Pesquisa), company warns (Expandir a Pesquisa), company cars (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
war non » car non (Expandir a Pesquisa), ear non (Expandir a Pesquisa), war nor (Expandir a Pesquisa)
nacl co » nacl co2 (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa), nacl kno (Expandir a Pesquisa)
dan non » than non (Expandir a Pesquisa), dan ning (Expandir a Pesquisa)
co dan » cao dan (Expandir a Pesquisa), co dao (Expandir a Pesquisa), ho dan (Expandir a Pesquisa)
3 oil » 3 oils (Expandir a Pesquisa), _ oil (Expandir a Pesquisa), l oil (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.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 3 oil company war non ) OR ( 3.5 nacl co dan non ))) OR ( j aix computers dan non ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 oil company war non ) or ( 3.5 nacl co dan non ))) or ( j aix computers dan non ))*.