Talvez deva tentar algumas variações de ortografia:
complex trieu » complex trial (Expandir a Pesquisa), complex tree (Expandir a Pesquisa), complex trex (Expandir a Pesquisa)
met complex » mt complex (Expandir a Pesquisa), yet complex (Expandir a Pesquisa), set complex (Expandir a Pesquisa)
trieu ngoa » trieu ngoc (Expandir a Pesquisa), thieu nga (Expandir a Pesquisa), tieu ngoc (Expandir a Pesquisa)
kno carlos » knopf carlos (Expandir a Pesquisa), cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa)
7.2 natl » 7.2 nacl (Expandir a Pesquisa)
natl kno » nacl kno (Expandir a Pesquisa)
e combs » sex combs (Expandir a Pesquisa)
combs c » combs _ (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 e combs c net ) or ((( 5 met complex trieu ngoa ) or ( 7.2 natl kno carlos (nota or nova) ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs c net ) OR ((( 5 met complex trieu ngoa ) OR ( 7.2 natl kno carlos (nota OR nova) )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs c net ) or ((( 5 met complex trieu ngoa ) or ( 7.2 natl kno carlos (nota or nova) ))))*.