Talvez deva tentar algumas variações de ortografia:
can computers » can computer (Expandir a Pesquisa), than computers (Expandir a Pesquisa), can computed (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer case (Expandir a Pesquisa), computer a (Expandir a Pesquisa)
rna computer » rna computers (Expandir a Pesquisa), dna computer (Expandir a Pesquisa), area computer (Expandir a Pesquisa)
computers a » computers _ (Expandir a Pesquisa)
a computer » _ computer (Expandir a Pesquisa)
can netw » can new (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa)
a netz » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
j rna » _ rna (Expandir a Pesquisa), 1 rna (Expandir a Pesquisa), a rna (Expandir a Pesquisa)
j can » j cano (Expandir a Pesquisa), j cant (Expandir a Pesquisa), _ can (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 a computer can netw ) or ( j rna computer can netw ))) or ( j can computers a netz ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j a computer can netw ) OR ( j rna computer can netw ))) OR ( j can computers a netz )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j a computer can netw ) or ( j rna computer can netw ))) or ( j can computers a netz ))*.