Talvez deva tentar algumas variações de ortografia:
complexes track » complexes eracs (Expandir a Pesquisa), complexes tacs (Expandir a Pesquisa), complexes act (Expandir a Pesquisa)
najar carlos » nejar carlos (Expandir a Pesquisa), fajardo carlos (Expandir a Pesquisa), baltar carlos (Expandir a Pesquisa)
carlos lara » carlos lima (Expandir a Pesquisa), carlos lacerda (Expandir a Pesquisa), carlos lazaro (Expandir a Pesquisa)
track ngoc » tran ngoc (Expandir a Pesquisa), tram ngoc (Expandir a Pesquisa), trang ngoc (Expandir a Pesquisa)
nacl najar » al najar (Expandir a Pesquisa), nacl nabr (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
l comps » m comps (Expandir a Pesquisa)
comps c » camps c (Expandir a Pesquisa), comps i (Expandir a Pesquisa), comps b (Expandir a Pesquisa)
5 metal » 5 methyl (Expandir a Pesquisa)
c new » a new (Expandir a Pesquisa), _ new (Expandir a Pesquisa), c neu (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 c new ) or ((( 5 metal complexes track ngoc ) or ( 7.5 nacl najar carlos lara ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comps c new ) OR ((( 5 metal complexes track ngoc ) OR ( 7.5 nacl najar carlos lara )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comps c new ) or ((( 5 metal complexes track ngoc ) or ( 7.5 nacl najar carlos lara ))))*.