Talvez deva tentar algumas variações de ortografia:
nacl co2lex » nacl complex (Expandir a Pesquisa)
co2lex cell » complex cell (Expandir a Pesquisa), cortex cell (Expandir a Pesquisa), complex cells (Expandir a Pesquisa)
a computers » a computer's (Expandir a Pesquisa), a computer (Expandir a Pesquisa), _ computers (Expandir a Pesquisa)
computers a » computers _ (Expandir a Pesquisa)
cell know » cells know (Expandir a Pesquisa), cell now (Expandir a Pesquisa), well know (Expandir a Pesquisa)
nacl co2 » nacl co (Expandir a Pesquisa)
co2 can » co2 dan (Expandir a Pesquisa), co2 case (Expandir a Pesquisa), co2 dans (Expandir a Pesquisa)
can now » can new (Expandir a Pesquisa), can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
a nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), a naci (Expandir a Pesquisa)
a non » _ non (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: (((( 3 nacl co2 can now ) or ( a nacl co2lex cell know ))) or ( j a computers a non ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 3 nacl co2 can now ) OR ( a nacl co2lex cell know ))) OR ( j a computers a non )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 nacl co2 can now ) or ( a nacl co2lex cell know ))) or ( j a computers a non ))*.