Talvez deva tentar algumas variações de ortografia:
eye compared » eyes compared (Expandir a Pesquisa), rye compared (Expandir a Pesquisa), age compared (Expandir a Pesquisa)
nat computer » cat computer (Expandir a Pesquisa), fast computer (Expandir a Pesquisa), icat computer (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
dna clamp » a clamp (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a netb (Expandir a Pesquisa), a nets (Expandir a Pesquisa)
a neta » a neto (Expandir a Pesquisa), a nectar (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.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j nat computer a netw ) OR ( j eye compared a neta ))) OR ( _ dna clamp a neta ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nat computer a netw ) OR ( j eye compared a neta ))) OR ( _ dna clamp a neta ))*.