Talvez deva tentar algumas variações de ortografia:
nacl computers » small computers (Expandir a Pesquisa), space computers (Expandir a Pesquisa), panel computers (Expandir a Pesquisa)
model compared » model compound (Expandir a Pesquisa), model complex (Expandir a Pesquisa), model combined (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa)
campo can » campo con (Expandir a Pesquisa), camp can (Expandir a Pesquisa), campo canar (Expandir a Pesquisa)
can newts » can new (Expandir a Pesquisa), can newly (Expandir a Pesquisa)
el campo » del campo (Expandir a Pesquisa), el cambio (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can new (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
j el » j l (Expandir a Pesquisa), j e (Expandir a Pesquisa), j al (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: (((( _ model compared a netw ) or ( j el campo can newts ))) or ( 3 nacl computers can now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( _ model compared a netw ) OR ( j el campo can newts ))) OR ( 3 nacl computers can now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( _ model compared a netw ) or ( j el campo can newts ))) or ( 3 nacl computers can now ))*.