Talvez deva tentar algumas variações de ortografia:
nacl companies » small companies (Expandir a Pesquisa), oil companies (Expandir a Pesquisa), nacl compared (Expandir a Pesquisa)
companies case » companies based (Expandir a Pesquisa), companies a (Expandir a Pesquisa), companies act (Expandir a Pesquisa)
aplp computer » apl computer (Expandir a Pesquisa), maple computer (Expandir a Pesquisa), capp computer (Expandir a Pesquisa)
leng compared » lung compared (Expandir a Pesquisa), lens compared (Expandir a Pesquisa), leg compared (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
j nacl » _ nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa), a nacl (Expandir a Pesquisa)
a nos » a non (Expandir a Pesquisa), e nos (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: (( i aplp computer a new ) or ((( j nacl companies case now ) or ( j leng compared a nos ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( i aplp computer a new ) OR ((( j nacl companies case now ) OR ( j leng compared a nos )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( i aplp computer a new ) or ((( j nacl companies case now ) or ( j leng compared a nos ))))*.