Talvez deva tentar algumas variações de ortografia:
computer classes » computer clusters (Expandir a Pesquisa), computer cluster (Expandir a Pesquisa), computer case (Expandir a Pesquisa)
day computer » ray computer (Expandir a Pesquisa), day computed (Expandir a Pesquisa), daily computer (Expandir a Pesquisa)
classes new » glasses new (Expandir a Pesquisa), classes de (Expandir a Pesquisa), classes e (Expandir a Pesquisa)
hearn camp » heart camp (Expandir a Pesquisa), heart amp (Expandir a Pesquisa), hearn amy (Expandir a Pesquisa)
can never » than never (Expandir a Pesquisa), a never (Expandir a Pesquisa), had never (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
j hearn » j hearne (Expandir a Pesquisa), j heard (Expandir a Pesquisa), j hearing (Expandir a Pesquisa)
a clamp » dna clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
a newts » _ newts (Expandir a Pesquisa), a news (Expandir a Pesquisa), a newt (Expandir a Pesquisa)
a day » _ day (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 hearn camp can never ) OR ( j a clamp a newts ))) OR ( a day computer classes new ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j hearn camp can never ) or ( j a clamp a newts ))) or ( a day computer classes new ))*.