Talvez deva tentar algumas variações de ortografia:
methyl coupled » method coupled (Expandir a Pesquisa), metal coupled (Expandir a Pesquisa), methanol coupled (Expandir a Pesquisa)
coupled tried » coupled trigger (Expandir a Pesquisa), coupled trimers (Expandir a Pesquisa), coupled triple (Expandir a Pesquisa)
hajar carlos » najar carlos (Expandir a Pesquisa), nejar carlos (Expandir a Pesquisa), baltar carlos (Expandir a Pesquisa)
combs upon » limbs upon (Expandir a Pesquisa)
tried ngoc » trieu ngoc (Expandir a Pesquisa), trinh ngoc (Expandir a Pesquisa), tien ngoc (Expandir a Pesquisa)
nacl hajar » al hajar (Expandir a Pesquisa), rachel hajar (Expandir a Pesquisa)
carlos nad » carlos nardi (Expandir a Pesquisa), carlos nadaf (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa)
upon net » upon neo (Expandir a Pesquisa), upon new (Expandir a Pesquisa), upon near (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: (( _ sex combs upon net ) or ((( 5 methyl coupled tried ngoc ) or ( 3.5 nacl hajar carlos nad ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ sex combs upon net ) OR ((( 5 methyl coupled tried ngoc ) OR ( 3.5 nacl hajar carlos nad )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ sex combs upon net ) or ((( 5 methyl coupled tried ngoc ) or ( 3.5 nacl hajar carlos nad ))))*.