Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
complex cause » complex causes (Expandir a Pesquisa), complex case (Expandir a Pesquisa), complex care (Expandir a Pesquisa)
oil company » oil companies (Expandir a Pesquisa)
company cas » company case (Expandir a Pesquisa), company cars (Expandir a Pesquisa), company car (Expandir a Pesquisa)
cause non » causes non (Expandir a Pesquisa)
cas show » cases show (Expandir a Pesquisa), rnas show (Expandir a Pesquisa), cuts show (Expandir a Pesquisa)
c champ » c champe (Expandir a Pesquisa), _ champ (Expandir a Pesquisa), e champ (Expandir a Pesquisa)
champ c » champ de (Expandir a Pesquisa)
5 metal » 5 metil (Expandir a Pesquisa), 5 methyl (Expandir a Pesquisa)
c new » a new (Expandir a Pesquisa), _ new (Expandir a Pesquisa), c neu (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 c champ c new ) or ((( 5 metal complex cause non ) or ( _ oil company cas show ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j c champ c new ) OR ((( 5 metal complex cause non ) OR ( _ oil company cas show )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j c champ c new ) or ((( 5 metal complex cause non ) or ( _ oil company cas show ))))*.