Talvez deva tentar algumas variações de ortografia:
about computer » ut computer (Expandir a Pesquisa), about complex (Expandir a Pesquisa)
computer based » computer aided (Expandir a Pesquisa)
nacl compared » al compared (Expandir a Pesquisa), panel compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa)
why companies » city companies (Expandir a Pesquisa), _ companies (Expandir a Pesquisa), gas companies (Expandir a Pesquisa)
companies cut » companies act (Expandir a Pesquisa), companies can (Expandir a Pesquisa), companies case (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa)
j about » _ about (Expandir a Pesquisa), a about (Expandir a Pesquisa), 2 about (Expandir a Pesquisa)
cut now » cut new (Expandir a Pesquisa), gut now (Expandir a Pesquisa), out now (Expandir a Pesquisa)
a non » _ non (Expandir a Pesquisa)
j why » _ why (Expandir a Pesquisa), i why (Expandir a Pesquisa), 2 why (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: (( j about computer based non ) or ((( 3.5 nacl compared a non ) or ( j why companies cut now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j about computer based non ) OR ((( 3.5 nacl compared a non ) OR ( j why companies cut now )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j about computer based non ) or ((( 3.5 nacl compared a non ) or ( j why companies cut now ))))*.