Talvez deva tentar algumas variações de ortografia:
carlos patino » carlos patricio (Expandir a Pesquisa), carlos pardo (Expandir a Pesquisa)
metal complex » metal complexes (Expandir a Pesquisa)
complex trs » complex tris (Expandir a Pesquisa), complex tears (Expandir a Pesquisa), complex trans (Expandir a Pesquisa)
john asnet » john agnew (Expandir a Pesquisa), john asger (Expandir a Pesquisa), john agnes (Expandir a Pesquisa)
kno carlos » knopf carlos (Expandir a Pesquisa), cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa)
l coombs » l coombes (Expandir a Pesquisa), g coombs (Expandir a Pesquisa), _ coombs (Expandir a Pesquisa)
trs ngoc » tra ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), tram ngoc (Expandir a Pesquisa)
nacl kno » nacl nano (Expandir a Pesquisa), nacl en (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa)
5 metal » 5 methyl (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 coombs john asnet ) or ((( 5 metal complex trs ngoc ) or ( 3.5 nacl kno carlos patino ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l coombs john asnet ) OR ((( 5 metal complex trs ngoc ) OR ( 3.5 nacl kno carlos patino )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l coombs john asnet ) or ((( 5 metal complex trs ngoc ) or ( 3.5 nacl kno carlos patino ))))*.