Talvez deva tentar algumas variações de ortografia:
computer cases » computer case (Expandir a Pesquisa), computer classes (Expandir a Pesquisa), computer caries (Expandir a Pesquisa)
fast computer » cost computer (Expandir a Pesquisa), best computer (Expandir a Pesquisa), fast computing (Expandir a Pesquisa)
rat compared » rats compared (Expandir a Pesquisa), rate compared (Expandir a Pesquisa), fat compared (Expandir a Pesquisa)
compr than » cpr than (Expandir a Pesquisa), complex than (Expandir a Pesquisa), company than (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa)
cases now » cases new (Expandir a Pesquisa), cases non (Expandir a Pesquisa), case now (Expandir a Pesquisa)
nat compr » la compr (Expandir a Pesquisa), nat comm (Expandir a Pesquisa)
j fast » j faust (Expandir a Pesquisa), j fausto (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), a nat (Expandir a Pesquisa)
a rat » _ rat (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: (((( j fast computer cases now ) or ( j nat compr than non ))) or ( a rat compared a non ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j fast computer cases now ) OR ( j nat compr than non ))) OR ( a rat compared a non )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j fast computer cases now ) or ( j nat compr than non ))) or ( a rat compared a non ))*.