Talvez deva tentar algumas variações de ortografia:
nacl complex » nail complex (Expandir a Pesquisa), nac56 complex (Expandir a Pesquisa), nasal complex (Expandir a Pesquisa)
metal com » metal co (Expandir a Pesquisa), metal con (Expandir a Pesquisa), metal cord (Expandir a Pesquisa)
child 18 » child 10 (Expandir a Pesquisa), child 8 (Expandir a Pesquisa), child 13 (Expandir a Pesquisa)
com many » come many (Expandir a Pesquisa), com mary (Expandir a Pesquisa), from many (Expandir a Pesquisa)
many non » many new (Expandir a Pesquisa)
n child » can child (Expandir a Pesquisa), own child (Expandir a Pesquisa), non child (Expandir a Pesquisa)
nca non » nca ion (Expandir a Pesquisa), brca non (Expandir a Pesquisa), ns5a non (Expandir a Pesquisa)
3 metal » 3 methyl (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
ca non » coa non (Expandir a Pesquisa), ia non (Expandir a Pesquisa), la 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: (( j l n child 18 ) or ((( 3 nacl complex ((ca non) OR (nca non)) ) or ( 3 metal com many non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l n child 18 ) OR ((( 3 nacl complex ((ca non) OR (nca non)) ) OR ( 3 metal com many non ))))*.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l n child 18 ) or ((( 3 nacl complex ((ca non) OR (nca non)) ) or ( 3 metal com many non ))))*".