Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
complex tran » complex trans (Expandir a Pesquisa), complex tehran (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
maria carlos » mario carlos (Expandir a Pesquisa), garcia carlos (Expandir a Pesquisa), maria carlota (Expandir a Pesquisa)
combs focus » combs locus (Expandir a Pesquisa), common focus (Expandir a Pesquisa)
carlos juan » carlos julio (Expandir a Pesquisa)
nacl maria » nacl para (Expandir a Pesquisa), nacl partial (Expandir a Pesquisa)
focus new » locus new (Expandir a Pesquisa), focus near (Expandir a Pesquisa)
tran ngo » tran ngoc (Expandir a Pesquisa), tran nho (Expandir a Pesquisa), tran nga (Expandir a Pesquisa)
0.9 nacl » 3.5 nacl (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 focus new ) or ((( 5 metal complex tran ngo ) or ( 0.9 nacl maria carlos juan ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs focus new ) OR ((( 5 metal complex tran ngo ) OR ( 0.9 nacl maria carlos juan )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs focus new ) or ((( 5 metal complex tran ngo ) or ( 0.9 nacl maria carlos juan ))))*.