Talvez deva tentar algumas variações de ortografia:
metal coupled » metals coupled (Expandir a Pesquisa), mutual coupled (Expandir a Pesquisa), beta coupled (Expandir a Pesquisa)
coupled stone » coupled histone (Expandir a Pesquisa), coupled bone (Expandir a Pesquisa), coupled state (Expandir a Pesquisa)
diet carlos » diez carlos (Expandir a Pesquisa), diego carlos (Expandir a Pesquisa), diehl carlos (Expandir a Pesquisa)
stone cone » stone anne (Expandir a Pesquisa), stone coal (Expandir a Pesquisa), cone cone (Expandir a Pesquisa)
colin net » colin neil (Expandir a Pesquisa), colin n (Expandir a Pesquisa), colin n.a (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
5 metal » 5 metil (Expandir a Pesquisa), 5 methyl (Expandir a Pesquisa)
nacl » natl (Expandir a Pesquisa), nac (Expandir a Pesquisa), nucl (Expandir a Pesquisa)
negrao » negras (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 combs colin net ) or ((( 5 metal coupled stone cone ) or ( 0.9 nacl diet carlos negrao ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs colin net ) OR ((( 5 metal coupled stone cone ) OR ( 0.9 nacl diet carlos negrao )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs colin net ) or ((( 5 metal coupled stone cone ) or ( 0.9 nacl diet carlos negrao ))))*.