Talvez deva tentar algumas variações de ortografia:
nat computer » cat computer (Expandir a Pesquisa), fast computer (Expandir a Pesquisa), icat computer (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer case (Expandir a Pesquisa), computer a (Expandir a Pesquisa)
eye compare » eye compared (Expandir a Pesquisa), eyes compared (Expandir a Pesquisa), rye compared (Expandir a Pesquisa)
compare a » compare _ (Expandir a Pesquisa)
dna clamp » a clamp (Expandir a Pesquisa)
can netw » can new (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
a netb » a neto (Expandir a Pesquisa), _ netb (Expandir a Pesquisa), a neta (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (Expandir a Pesquisa)
j eye » j eyre (Expandir a Pesquisa), _ eye (Expandir a Pesquisa), a eye (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 computer can netw ) or ( j eye compare a netb ))) or ( _ dna clamp a netb ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j nat computer can netw ) OR ( j eye compare a netb ))) OR ( _ dna clamp a netb ))*.