Talvez deva tentar algumas variações de ortografia:
knopf carlos » prof carlos (Expandir a Pesquisa)
complex tras » complex trans (Expandir a Pesquisa), complex tris (Expandir a Pesquisa), complex trs (Expandir a Pesquisa)
carlos carla » carlos camila (Expandir a Pesquisa), carlos carlos (Expandir a Pesquisa), carlos calva (Expandir a Pesquisa)
combs bacon » com bacon (Expandir a Pesquisa), combs jason (Expandir a Pesquisa), combs brandon (Expandir a Pesquisa)
met complex » mt complex (Expandir a Pesquisa), yet complex (Expandir a Pesquisa), set complex (Expandir a Pesquisa)
bacon new » bacon's new (Expandir a Pesquisa), bacon neil (Expandir a Pesquisa), bacon e (Expandir a Pesquisa)
tras ngoc » tran ngoc (Expandir a Pesquisa), tram ngoc (Expandir a Pesquisa), trang ngoc (Expandir a Pesquisa)
nac knopf » a knopf (Expandir a Pesquisa)
3.5 nac » 3.5 nacl (Expandir a Pesquisa), 7.5 nacl (Expandir a Pesquisa)
5 met » 5 meo (Expandir a Pesquisa), 5 mev (Expandir a Pesquisa), 5 mec (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 bacon new ) or ((( 5 met complex tras ngoc ) or ( 3.5 nac knopf carlos carla ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs bacon new ) OR ((( 5 met complex tras ngoc ) OR ( 3.5 nac knopf carlos carla )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs bacon new ) or ((( 5 met complex tras ngoc ) or ( 3.5 nac knopf carlos carla ))))*.