Talvez deva tentar algumas variações de ortografia:
computer classes » computer clusters (Expandir a Pesquisa), computer cluster (Expandir a Pesquisa), computer case (Expandir a Pesquisa)
daily computer » daily compared (Expandir a Pesquisa), ray computer (Expandir a Pesquisa)
acl compare » acl compared (Expandir a Pesquisa), nacl compared (Expandir a Pesquisa), a compare (Expandir a Pesquisa)
classes now » classes new (Expandir a Pesquisa), classes nos (Expandir a Pesquisa), classes na (Expandir a Pesquisa)
compare a » compare _ (Expandir a Pesquisa)
clamp ar » clamp a (Expandir a Pesquisa), clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
ar newts » can newts (Expandir a Pesquisa), _ newts (Expandir a Pesquisa), war news (Expandir a Pesquisa)
a clamp » _ clamp (Expandir a Pesquisa), c clamp (Expandir a Pesquisa), dna clamp (Expandir a Pesquisa)
j daily » j daly (Expandir a Pesquisa), j daisy (Expandir a Pesquisa), j daigle (Expandir a Pesquisa)
j acl » _ acl (Expandir a Pesquisa), j cl (Expandir a Pesquisa), j adl (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 acl compare a near ) or ( j a clamp ar newts ))) or ( j daily computer classes now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j acl compare a near ) OR ( j a clamp ar newts ))) OR ( j daily computer classes now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j acl compare a near ) or ( j a clamp ar newts ))) or ( j daily computer classes now ))*.