Talvez deva tentar algumas variações de ortografia:
computer classes » computer clusters (Expandir a Pesquisa), computer cluster (Expandir a Pesquisa), computer case (Expandir a Pesquisa)
claims cost » claims costs (Expandir a Pesquisa), claims court (Expandir a Pesquisa), claims cash (Expandir a Pesquisa)
classes non » classes nos (Expandir a Pesquisa), classes na (Expandir a Pesquisa), classes en (Expandir a Pesquisa)
combe have » code have (Expandir a Pesquisa), comet have (Expandir a Pesquisa), core have (Expandir a Pesquisa)
have fever » have never (Expandir a Pesquisa), have fewer (Expandir a Pesquisa), have ever (Expandir a Pesquisa)
cost newts » post news (Expandir a Pesquisa), costa newton (Expandir a Pesquisa)
l computer » il computer (Expandir a Pesquisa), al computer (Expandir a Pesquisa), dal computer (Expandir a Pesquisa)
i combe » i come (Expandir a Pesquisa), _ combe (Expandir a Pesquisa), i combi (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 i combe have fever ) or ( j a claims cost newts ))) or ( j l computer classes non ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j i combe have fever ) OR ( j a claims cost newts ))) OR ( j l computer classes non )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j i combe have fever ) or ( j a claims cost newts ))) or ( j l computer classes non ))*.