Talvez deva tentar algumas variações de ortografia:
complex connection » complex correction (Expandir a Pesquisa), complex infection (Expandir a Pesquisa), complex condition (Expandir a Pesquisa)
hart complex » heart complex (Expandir a Pesquisa), hat complex (Expandir a Pesquisa), art complex (Expandir a Pesquisa)
kno carlos » knopf carlos (Expandir a Pesquisa), cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa)
carlos nar » carlos nara (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa), carlos nardi (Expandir a Pesquisa)
l combat » le combat (Expandir a Pesquisa), _ combat (Expandir a Pesquisa), a combat (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
nacl kno » nacl nano (Expandir a Pesquisa), nacl en (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa)
covid e » covid _ (Expandir a Pesquisa), covid a (Expandir a Pesquisa), covid era (Expandir a Pesquisa)
a hart » a hard (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 combat covid e ) or ((( a hart complex connection _ ) or ( 3.5 nacl kno carlos nar ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combat covid e ) OR ((( a hart complex connection _ ) OR ( 3.5 nacl kno carlos nar )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combat covid e ) or ((( a hart complex connection _ ) or ( 3.5 nacl kno carlos nar ))))*.