Talvez deva tentar algumas variações de ortografia:
carlos vergara » carlos vargas (Expandir a Pesquisa)
metal complex » metal complexes (Expandir a Pesquisa)
coombs jason » coombes jason (Expandir a Pesquisa), toombs jason (Expandir a Pesquisa), cooper jason (Expandir a Pesquisa)
complex tres » complex tree (Expandir a Pesquisa), complex trex (Expandir a Pesquisa), complex tris (Expandir a Pesquisa)
caso carlos » castro carlos (Expandir a Pesquisa), ascaso carlos (Expandir a Pesquisa), casado carlos (Expandir a Pesquisa)
tres ngoc » trieu ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), tien ngoc (Expandir a Pesquisa)
nacl caso » nacl caso4 (Expandir a Pesquisa), nacl co (Expandir a Pesquisa), nacl nano (Expandir a Pesquisa)
l coombs » l coombes (Expandir a Pesquisa), g coombs (Expandir a Pesquisa), _ coombs (Expandir a Pesquisa)
jason n » jason _ (Expandir a Pesquisa), jason a (Expandir a Pesquisa), jason c (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 l coombs jason n ) or ((( 5 metal complex tres ngoc ) or ( 0.9 nacl caso carlos vergara ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l coombs jason n ) OR ((( 5 metal complex tres ngoc ) OR ( 0.9 nacl caso carlos vergara )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l coombs jason n ) or ((( 5 metal complex tres ngoc ) or ( 0.9 nacl caso carlos vergara ))))*.