Talvez deva tentar algumas variações de ortografia:
metil complex » metal complex (Expandir a Pesquisa), metals complex (Expandir a Pesquisa), met complex (Expandir a Pesquisa)
complex trait » complex traits (Expandir a Pesquisa)
marco carlos » marcio carlos (Expandir a Pesquisa), mario carlos (Expandir a Pesquisa), marcelo carlos (Expandir a Pesquisa)
carlos nara » carlos lara (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos jara (Expandir a Pesquisa)
trait ngoc » tran ngoc (Expandir a Pesquisa), tram ngoc (Expandir a Pesquisa), trang ngoc (Expandir a Pesquisa)
nacl marco » cscl marco (Expandir a Pesquisa)
l coles » l cole (Expandir a Pesquisa), l coley (Expandir a Pesquisa), l collet (Expandir a Pesquisa)
5 metil » 5 methyl (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (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 coles bacon's new ) or ((( 5 metil complex trait ngoc ) or ( 3 nacl marco carlos nara ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l coles bacon's new ) OR ((( 5 metil complex trait ngoc ) OR ( 3 nacl marco carlos nara )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l coles bacon's new ) or ((( 5 metil complex trait ngoc ) or ( 3 nacl marco carlos nara ))))*.