Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
collet bacon » collet jason (Expandir a Pesquisa), collection bacon (Expandir a Pesquisa), collet leon (Expandir a Pesquisa)
caso4 carlos » caso carlos (Expandir a Pesquisa), caro carlos (Expandir a Pesquisa), casal carlos (Expandir a Pesquisa)
complex trs » complex tris (Expandir a Pesquisa), complex tears (Expandir a Pesquisa), complex trans (Expandir a Pesquisa)
carlos lara » carlos lima (Expandir a Pesquisa), carlos lacerda (Expandir a Pesquisa), carlos lazaro (Expandir a Pesquisa)
nacl caso4 » nacl na2so4 (Expandir a Pesquisa)
l collet » _ collet (Expandir a Pesquisa), c collet (Expandir a Pesquisa), l cole (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
bacon c » bacon p (Expandir a Pesquisa), bacon _ (Expandir a Pesquisa)
5 metal » 5 methyl (Expandir a Pesquisa)
trs ngo » tri ngo (Expandir a Pesquisa), trips ngo (Expandir a Pesquisa), tram ngo (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 collet bacon c ) or ((( 5 metal complex trs ngo ) or ( 3.5 nacl caso4 carlos lara ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l collet bacon c ) OR ((( 5 metal complex trs ngo ) OR ( 3.5 nacl caso4 carlos lara )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l collet bacon c ) or ((( 5 metal complex trs ngo ) or ( 3.5 nacl caso4 carlos lara ))))*.