Talvez deva tentar algumas variações de ortografia:
aids computers » minds computers (Expandir a Pesquisa), brains computers (Expandir a Pesquisa), radios computers (Expandir a Pesquisa)
nacl companies » small companies (Expandir a Pesquisa), oil companies (Expandir a Pesquisa), nacl compared (Expandir a Pesquisa)
companies can » companies case (Expandir a Pesquisa), companies a (Expandir a Pesquisa), companies cut (Expandir a Pesquisa)
early compare » early compared (Expandir a Pesquisa), early compacted (Expandir a Pesquisa), early computed (Expandir a Pesquisa)
computers a » computers _ (Expandir a Pesquisa)
compare a » compare _ (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), phan ngoc (Expandir a Pesquisa)
a early » a earley (Expandir a Pesquisa), a earl (Expandir a Pesquisa), via early (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
a non » _ non (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: (( _ aids computers a new ) or ((( 3 nacl companies can ngoc ) or ( a early compare a non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ aids computers a new ) OR ((( 3 nacl companies can ngoc ) OR ( a early compare a non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ aids computers a new ) or ((( 3 nacl companies can ngoc ) or ( a early compare a non ))))*.