Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
complex tract » complex trait (Expandir a Pesquisa), complex trace (Expandir a Pesquisa), complex extract (Expandir a Pesquisa)
nino carlos » cano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa), semino carlos (Expandir a Pesquisa)
comes icon » comes can (Expandir a Pesquisa), comes second (Expandir a Pesquisa)
carlos noa » carlos nodal (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos nara (Expandir a Pesquisa)
tract ngo » tract new (Expandir a Pesquisa), tract nk (Expandir a Pesquisa), tract nts (Expandir a Pesquisa)
icon new » bacon new (Expandir a Pesquisa), oxon new (Expandir a Pesquisa), icon fes (Expandir a Pesquisa)
7.5 nucl » 7.5 nacl (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 _ comes icon new ) or ((( 5 metal complex tract ngo ) or ( 7.5 nucl nino carlos noa ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ comes icon new ) OR ((( 5 metal complex tract ngo ) OR ( 7.5 nucl nino carlos noa )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ comes icon new ) or ((( 5 metal complex tract ngo ) or ( 7.5 nucl nino carlos noa ))))*.