Talvez deva tentar algumas variações de ortografia:
comparing case » comparing cancer (Expandir a Pesquisa), compelling case (Expandir a Pesquisa), comparing climate (Expandir a Pesquisa)
computer code » computer model (Expandir a Pesquisa), computer models (Expandir a Pesquisa), computer crime (Expandir a Pesquisa)
cat computers » can computers (Expandir a Pesquisa), cat computer (Expandir a Pesquisa), what computers (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
dna computer » data computer (Expandir a Pesquisa), a computer (Expandir a Pesquisa), via computer (Expandir a Pesquisa)
ra comparing » a comparing (Expandir a Pesquisa), area comparing (Expandir a Pesquisa), rica comparing (Expandir a Pesquisa)
code netw » code net (Expandir a Pesquisa), code new (Expandir a Pesquisa), code nec2 (Expandir a Pesquisa)
case netw » case new (Expandir a Pesquisa), case note (Expandir a Pesquisa), case near (Expandir a Pesquisa)
j dna » _ dna (Expandir a Pesquisa), a dna (Expandir a Pesquisa), 1 dna (Expandir a Pesquisa)
j cat » _ cat (Expandir a Pesquisa), a cat (Expandir a Pesquisa), j cao (Expandir a Pesquisa)
j ra » j a (Expandir a Pesquisa), j r (Expandir a Pesquisa), j da (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 dna computer code netw ) or ( j ra comparing case netw ))) or ( j cat computers can new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j dna computer code netw ) OR ( j ra comparing case netw ))) OR ( j cat computers can new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j dna computer code netw ) or ( j ra comparing case netw ))) or ( j cat computers can new ))*.