Talvez deva tentar algumas variações de ortografia:
nacl complex » nac56 complex (Expandir a Pesquisa), al complex (Expandir a Pesquisa), all complex (Expandir a Pesquisa)
complex ccsc » complex ccoc (Expandir a Pesquisa), complex csc (Expandir a Pesquisa), complex case (Expandir a Pesquisa)
child num » chile num (Expandir a Pesquisa), child norm (Expandir a Pesquisa), child non (Expandir a Pesquisa)
ccsc non » ccrcc non (Expandir a Pesquisa)
n child » can child (Expandir a Pesquisa), own child (Expandir a Pesquisa), non child (Expandir a Pesquisa)
3 neila » 3 neil3 (Expandir a Pesquisa), _ neila (Expandir a Pesquisa), j neila (Expandir a Pesquisa)
neila m » leila m (Expandir a Pesquisa), keila m (Expandir a Pesquisa), sheila m (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
w ngoc » _ ngoc (Expandir a Pesquisa), b ngoc (Expandir a Pesquisa), h ngoc (Expandir a Pesquisa)
d ngoc » do ngoc (Expandir a Pesquisa), du ngoc (Expandir a Pesquisa), _ ngoc (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 num ) or ((( 3 nacl complex ccsc non ) or ( 3 neila m ((w ngoc) OR (d ngoc)) ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l n child num ) OR ((( 3 nacl complex ccsc non ) OR ( 3 neila m ((w ngoc) OR (d ngoc)) ))))*.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l n child num ) or ((( 3 nacl complex ccsc non ) or ( 3 neila m ((w ngoc) OR (d ngoc)) ))))*".