Talvez deva tentar algumas variações de ortografia:
held computers » held computer (Expandir a Pesquisa), handheld computers (Expandir a Pesquisa)
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)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
nagy compare » copy compare (Expandir a Pesquisa)
compare a » compare _ (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
can now » can new (Expandir a Pesquisa), can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
i held » ii held (Expandir a Pesquisa), i heldr (Expandir a Pesquisa), i help (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: (( i held computers can now ) or ((( _ nacl companies case now ) or ( e nagy compare a non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( i held computers can now ) OR ((( _ nacl companies case now ) OR ( e nagy compare a non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( i held computers can now ) or ((( _ nacl companies case now ) or ( e nagy compare a non ))))*.