Talvez deva tentar algumas variações de ortografia:
computer classes » computer clusters (Expandir a Pesquisa), computer cluster (Expandir a Pesquisa), computer case (Expandir a Pesquisa)
dal computer » dental computer (Expandir a Pesquisa), small computer (Expandir a Pesquisa), local computer (Expandir a Pesquisa)
classes new » glasses new (Expandir a Pesquisa), classes de (Expandir a Pesquisa), classes e (Expandir a Pesquisa)
nail camp » nail can (Expandir a Pesquisa), nail case (Expandir a Pesquisa), nail alp (Expandir a Pesquisa)
had fever » had never (Expandir a Pesquisa), had ever (Expandir a Pesquisa), bad fever (Expandir a Pesquisa)
dna clamp » a clamp (Expandir a Pesquisa)
camp had » camp chad (Expandir a Pesquisa), camp has (Expandir a Pesquisa), camp have (Expandir a Pesquisa)
j nail » j nair (Expandir a Pesquisa)
j dna » _ dna (Expandir a Pesquisa), a dna (Expandir a Pesquisa), 1 dna (Expandir a Pesquisa)
_ dal » _ day (Expandir a Pesquisa), _ dar (Expandir a Pesquisa), _ das (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 nail camp had fever ) OR ( j dna clamp _ newts ))) OR ( _ dal computer classes new ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nail camp had fever ) or ( j dna clamp _ newts ))) or ( _ dal computer classes new ))*.