Talvez deva tentar algumas variações de ortografia:
nat computers » what computers (Expandir a Pesquisa), iet computers (Expandir a Pesquisa), can computers (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa)
rna compared » dna compared (Expandir a Pesquisa), a compared (Expandir a Pesquisa), china compared (Expandir a Pesquisa)
nat compr » la compr (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
can newts » can newly (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
j rna » _ rna (Expandir a Pesquisa), 1 rna (Expandir a Pesquisa), a rna (Expandir a Pesquisa)
_ nat » _ net (Expandir a Pesquisa), _ nad (Expandir a Pesquisa), _ nab (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: (((( _ nat compr can newts ) or ( j rna compared can now ))) or ( _ nat computers can new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( _ nat compr can newts ) OR ( j rna compared can now ))) OR ( _ nat computers can new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( _ nat compr can newts ) or ( j rna compared can now ))) or ( _ nat computers can new ))*.