Talvez deva tentar algumas variações de ortografia:
cloned complex » clone complex (Expandir a Pesquisa), closed complex (Expandir a Pesquisa), cloned complete (Expandir a Pesquisa)
complex leads » complex levels (Expandir a Pesquisa), complex lipids (Expandir a Pesquisa), complex loaded (Expandir a Pesquisa)
knopf carlos » prof carlos (Expandir a Pesquisa)
carlos nava » carlos navarro (Expandir a Pesquisa), carlos eslava (Expandir a Pesquisa), carlos zavala (Expandir a Pesquisa)
nacl knopf » nacl kno (Expandir a Pesquisa)
leads ngo » leads who (Expandir a Pesquisa), leads gu (Expandir a Pesquisa)
a cloned » _ cloned (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
combs a » coombs a (Expandir a Pesquisa), combs ca (Expandir a Pesquisa), combs _ (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 _ combs a new ) or ((( a cloned complex leads ngo ) or ( 7.5 nacl knopf carlos nava ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs a new ) OR ((( a cloned complex leads ngo ) OR ( 7.5 nacl knopf carlos nava )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs a new ) or ((( a cloned complex leads ngo ) or ( 7.5 nacl knopf carlos nava ))))*.