Talvez deva tentar algumas variações de ortografia:
complex metallic » complex metabolic (Expandir a Pesquisa), complex mental (Expandir a Pesquisa)
metallic foam » metallic foams (Expandir a Pesquisa), metallic film (Expandir a Pesquisa), metallic films (Expandir a Pesquisa)
fact complex » factor complex (Expandir a Pesquisa), factor complexes (Expandir a Pesquisa)
cano carlos » luciano carlos (Expandir a Pesquisa), casiano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa)
nacl cano » nacl nano (Expandir a Pesquisa), nacl caso4 (Expandir a Pesquisa), nacl cacl (Expandir a Pesquisa)
j cooper » _ cooper (Expandir a Pesquisa), i cooper (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
john _ » john a (Expandir a Pesquisa)
_ fact » _ facts (Expandir a Pesquisa), _ face (Expandir a Pesquisa), _ factor (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 j cooper john _ ) or ((( _ fact complex metallic foam ) or ( 3.5 nacl cano carlos rojas ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j j cooper john _ ) OR ((( _ fact complex metallic foam ) OR ( 3.5 nacl cano carlos rojas )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j j cooper john _ ) or ((( _ fact complex metallic foam ) or ( 3.5 nacl cano carlos rojas ))))*.