Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
complex three » complex than (Expandir a Pesquisa), complex tones (Expandir a Pesquisa)
carlos nejar » carlos negrao (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa)
colin net » colin neil (Expandir a Pesquisa), colin n (Expandir a Pesquisa), colin n.a (Expandir a Pesquisa)
three nac » three na (Expandir a Pesquisa), three nad (Expandir a Pesquisa), three nad2 (Expandir a Pesquisa)
co carlos » fico carlos (Expandir a Pesquisa), cardo carlos (Expandir a Pesquisa), marco carlos (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
5 metal » 5 methyl (Expandir a Pesquisa)
nacl co » nacl co2 (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa), nacl kno (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 combs colin net ) or ((( 5 metal complex three nac ) or ( 3.5 nacl co carlos nejar ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs colin net ) OR ((( 5 metal complex three nac ) OR ( 3.5 nacl co carlos nejar )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs colin net ) or ((( 5 metal complex three nac ) or ( 3.5 nacl co carlos nejar ))))*.