Talvez deva tentar algumas variações de ortografia:
compared cause » compared case (Expandir a Pesquisa), compared cases (Expandir a Pesquisa), complex cause (Expandir a Pesquisa)
fast computers » fast computer (Expandir a Pesquisa), cost computers (Expandir a Pesquisa), latest computers (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
pet compared » diet compared (Expandir a Pesquisa), ct compared (Expandir a Pesquisa), pet computed (Expandir a Pesquisa)
nat compare » fat compared (Expandir a Pesquisa), rat compared (Expandir a Pesquisa), rate compare (Expandir a Pesquisa)
compare a » compare _ (Expandir a Pesquisa)
cause new » causes new (Expandir a Pesquisa), use new (Expandir a Pesquisa), cause non (Expandir a Pesquisa)
j fast » j faust (Expandir a Pesquisa), j fausto (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ now (Expandir a Pesquisa)
j pet » _ pet (Expandir a Pesquisa), a pet (Expandir a Pesquisa), o pet (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: (((( _ nat compare a now ) or ( j pet compared cause new ))) or ( j fast computers can new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( _ nat compare a now ) OR ( j pet compared cause new ))) OR ( j fast computers can new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( _ nat compare a now ) or ( j pet compared cause new ))) or ( j fast computers can new ))*.