Talvez deva tentar algumas variações de ortografia:
complex trier » complex trial (Expandir a Pesquisa), complex tree (Expandir a Pesquisa), complex trex (Expandir a Pesquisa)
met complex » yet complex (Expandir a Pesquisa), set complex (Expandir a Pesquisa), metal complex (Expandir a Pesquisa)
trier ngoa » trieu ngoa (Expandir a Pesquisa), trieu ngoc (Expandir a Pesquisa)
kno carlos » knopf carlos (Expandir a Pesquisa), cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa)
carlos nor » carlos noa (Expandir a Pesquisa), carlos noe (Expandir a Pesquisa), carlos nobre (Expandir a Pesquisa)
7.2 nacl » 7.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
nacl kno » nacl nano (Expandir a Pesquisa), nacl en (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa)
c net » c neto (Expandir a Pesquisa), _ net (Expandir a Pesquisa), c neu (Expandir a Pesquisa)
5 met » 5 meo (Expandir a Pesquisa), 5 mev (Expandir a Pesquisa), 5 mec (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 (comps OR comas) c net ) or ((( 5 met complex trier ngoa ) or ( 7.2 nacl kno carlos nor ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l (comps OR comas) c net ) OR ((( 5 met complex trier ngoa ) OR ( 7.2 nacl kno carlos nor )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l (comps OR comas) c net ) or ((( 5 met complex trier ngoa ) or ( 7.2 nacl kno carlos nor ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l (comps OR comas) c net ) or ((( 5 met complex trier ngoa ) or ( 7.2 nacl kno carlos nor ))))*.