Talvez deva tentar algumas variações de ortografia:
complexes track » complexes eracs (Expandir a Pesquisa), complexes tacs (Expandir a Pesquisa), complexes act (Expandir a Pesquisa)
nabr carlos » najar carlos (Expandir a Pesquisa), nader carlos (Expandir a Pesquisa), jair carlos (Expandir a Pesquisa)
carlos jara » carlos lara (Expandir a Pesquisa), carlos carla (Expandir a Pesquisa), carlos juca (Expandir a Pesquisa)
track ngoc » tran ngoc (Expandir a Pesquisa), tram ngoc (Expandir a Pesquisa), trang ngoc (Expandir a Pesquisa)
nacl nabr » nacl kbr (Expandir a Pesquisa), nacl nano (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 b » comps i (Expandir a Pesquisa), copps b (Expandir a Pesquisa), camps b (Expandir a Pesquisa)
5 metal » 5 methyl (Expandir a Pesquisa)
b new » a new (Expandir a Pesquisa), _ new (Expandir a Pesquisa), 2 new (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 b new ) or ((( 5 metal complexes track ngoc ) or ( 7.5 nacl nabr carlos jara ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comps b new ) OR ((( 5 metal complexes track ngoc ) OR ( 7.5 nacl nabr carlos jara )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comps b new ) or ((( 5 metal complexes track ngoc ) or ( 7.5 nacl nabr carlos jara ))))*.