Talvez deva tentar algumas variações de ortografia:
duty computer » dutch computer (Expandir a Pesquisa), uy computer (Expandir a Pesquisa), daily computer (Expandir a Pesquisa)
computer age » computer image (Expandir a Pesquisa), computer a (Expandir a Pesquisa), computer aided (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa), can new (Expandir a Pesquisa)
nat com » nat2 com (Expandir a Pesquisa), eat com (Expandir a Pesquisa), mat com (Expandir a Pesquisa)
com can » com cana (Expandir a Pesquisa), com cant (Expandir a Pesquisa), com cal (Expandir a Pesquisa)
a clamp » dna clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
clamp j » clamp _ (Expandir a Pesquisa)
j newts » _ newts (Expandir a Pesquisa), j newton (Expandir a Pesquisa)
a duty » _ duty (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((( j nat com can near ) or ( j a clamp j newts ))) or ( a duty computer age new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j nat com can near ) OR ( j a clamp j newts ))) OR ( a duty computer age new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nat com can near ) or ( j a clamp j newts ))) or ( a duty computer age new ))*.