Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
complex trait » complex traits (Expandir a Pesquisa)
jair carlos » mir carlos (Expandir a Pesquisa), nejar carlos (Expandir a Pesquisa)
carlos noel » carlos joel (Expandir a Pesquisa), carlos noe (Expandir a Pesquisa), carlos yoel (Expandir a Pesquisa)
hobbs john » hobbs jean (Expandir a Pesquisa)
trait ngoc » tran ngoc (Expandir a Pesquisa), tram ngoc (Expandir a Pesquisa), trang ngoc (Expandir a Pesquisa)
nacl jair » nacl nabr (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
e hobbs » e hobbes (Expandir a Pesquisa), j hobbs (Expandir a Pesquisa), _ hobbs (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 hobbs john n ) or ((( 5 metal complex trait ngoc ) or ( 3.5 nacl jair carlos noel ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e hobbs john n ) OR ((( 5 metal complex trait ngoc ) OR ( 3.5 nacl jair carlos noel )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e hobbs john n ) or ((( 5 metal complex trait ngoc ) or ( 3.5 nacl jair carlos noel ))))*.