Talvez deva tentar algumas variações de ortografia:
aids computers » minds computers (Expandir a Pesquisa), brains computers (Expandir a Pesquisa), radios computers (Expandir a Pesquisa)
snail complex » snail1 complex (Expandir a Pesquisa), snails complex (Expandir a Pesquisa), nail complex (Expandir a Pesquisa)
complex can » complex case (Expandir a Pesquisa), complex care (Expandir a Pesquisa), complex cell (Expandir a Pesquisa)
3 snail » 3p snail (Expandir a Pesquisa), _ snail (Expandir a Pesquisa), a snail (Expandir a Pesquisa)
nacl co » nacl co2 (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa), nacl kno (Expandir a Pesquisa)
dan non » than non (Expandir a Pesquisa), dan ning (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
co dan » mo dan (Expandir a Pesquisa), co dao (Expandir a Pesquisa), co das (Expandir a Pesquisa)
j aids » mj aids (Expandir a Pesquisa), j aide (Expandir a Pesquisa), j aims (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 3 snail complex can new ) OR ( 3 nacl co dan non ))) OR ( j aids computers _ now ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 snail complex can new ) or ( 3 nacl co dan non ))) or ( j aids computers _ now ))*.