Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
carlos merino » carlos americo (Expandir a Pesquisa), carlos marin (Expandir a Pesquisa), carlos medina (Expandir a Pesquisa)
complex tran » complex trans (Expandir a Pesquisa), complex than (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa), hobbs john (Expandir a Pesquisa)
john agnew » john bagnell (Expandir a Pesquisa)
mno carlos » magno carlos (Expandir a Pesquisa), cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa)
tran ngo » tran ngoc (Expandir a Pesquisa), tran nho (Expandir a Pesquisa), tran nga (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
nacl mno » nacl kno (Expandir a Pesquisa), nacl nano (Expandir a Pesquisa), nacl en (Expandir a Pesquisa)
e combs » sex combs (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 e combs john agnew ) or ((( 5 metal complex tran ngo ) or ( 3.5 nacl mno carlos merino ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs john agnew ) OR ((( 5 metal complex tran ngo ) OR ( 3.5 nacl mno carlos merino )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs john agnew ) or ((( 5 metal complex tran ngo ) or ( 3.5 nacl mno carlos merino ))))*.