Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
carlos patino » carlos patricio (Expandir a Pesquisa), carlos pardo (Expandir a Pesquisa)
complex tree » complex three (Expandir a Pesquisa), complex trex (Expandir a Pesquisa), complex trace (Expandir a Pesquisa)
knopf carlos » prof carlos (Expandir a Pesquisa)
nacl knopf » nacl kno (Expandir a Pesquisa)
combs jan » coombs jana (Expandir a Pesquisa), combs john (Expandir a Pesquisa), combs j (Expandir a Pesquisa)
tree ngo » tree mango (Expandir a Pesquisa), tree nut (Expandir a Pesquisa), tree age (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
e combs » sex combs (Expandir a Pesquisa)
jan net » dan net (Expandir a Pesquisa), can net (Expandir a Pesquisa), jan nel (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 jan net ) or ((( 5 metal complex tree ngo ) or ( 3.5 nacl knopf carlos patino ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs jan net ) OR ((( 5 metal complex tree ngo ) OR ( 3.5 nacl knopf carlos patino )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs jan net ) or ((( 5 metal complex tree ngo ) or ( 3.5 nacl knopf carlos patino ))))*.