Talvez deva tentar algumas variações de ortografia:
daily computer » daily compared (Expandir a Pesquisa), ray computer (Expandir a Pesquisa)
computer code » computer model (Expandir a Pesquisa), computer models (Expandir a Pesquisa), computer crime (Expandir a Pesquisa)
natl comp » al comp (Expandir a Pesquisa), natalia comp (Expandir a Pesquisa)
can never » than never (Expandir a Pesquisa), a never (Expandir a Pesquisa), had never (Expandir a Pesquisa)
dna clamp » a clamp (Expandir a Pesquisa)
clamp can » clamp a (Expandir a Pesquisa), clamp ar (Expandir a Pesquisa), clamp cum (Expandir a Pesquisa)
can newts » can new (Expandir a Pesquisa), can newly (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), comp la (Expandir a Pesquisa)
code net » code new (Expandir a Pesquisa), code nec2 (Expandir a Pesquisa), code need (Expandir a Pesquisa)
j natl » j nail (Expandir a Pesquisa), _ natl (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
j dna » _ dna (Expandir a Pesquisa), a dna (Expandir a Pesquisa), 1 dna (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 natl comp can never ) OR ( j dna clamp can newts ))) OR ( a daily computer code net ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl comp can never ) OR ( j dna clamp can newts ))) OR ( a daily computer code net ))*.