Talvez deva tentar algumas variações de ortografia:
computer classes » computer clusters (Expandir a Pesquisa), computer cluster (Expandir a Pesquisa), computer case (Expandir a Pesquisa)
nail computer » daily computer (Expandir a Pesquisa), dal computer (Expandir a Pesquisa), il computer (Expandir a Pesquisa)
classes now » classes new (Expandir a Pesquisa), classes nos (Expandir a Pesquisa), classes na (Expandir a Pesquisa)
than never » than ever (Expandir a Pesquisa)
comp than » camp than (Expandir a Pesquisa), comp trad (Expandir a Pesquisa), bump than (Expandir a Pesquisa)
claims cr » claims act (Expandir a Pesquisa), claims can (Expandir a Pesquisa), claims emr (Expandir a Pesquisa)
nat comp » et comp (Expandir a Pesquisa)
a claims » _ claims (Expandir a Pesquisa)
cr newly » can newly (Expandir a Pesquisa), our newly (Expandir a Pesquisa), per newly (Expandir a Pesquisa)
j nail » _ nail (Expandir a Pesquisa), a nail (Expandir a Pesquisa), 3 nail (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j nat comp than never ) OR ( j a claims cr newly ))) OR ( j nail computer classes now ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nat comp than never ) or ( j a claims cr newly ))) or ( j nail computer classes now ))*.