Talvez deva tentar algumas variações de ortografia:
complex connection » complex correction (Expandir a Pesquisa), complex infection (Expandir a Pesquisa), complex condition (Expandir a Pesquisa)
connection a » connection _ (Expandir a Pesquisa)
akt complex » act complex (Expandir a Pesquisa), art complex (Expandir a Pesquisa), ast complex (Expandir a Pesquisa)
nino carlos » cano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa), semino carlos (Expandir a Pesquisa)
carlos nar » carlos nara (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa), carlos nardi (Expandir a Pesquisa)
covid new » covid e (Expandir a Pesquisa), covid de (Expandir a Pesquisa), covid en (Expandir a Pesquisa)
nacl nino » nacl nano (Expandir a Pesquisa), nacl kno (Expandir a Pesquisa), nacl mno (Expandir a Pesquisa)
a combat » _ combat (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
e akt » _ akt (Expandir a Pesquisa), b akt (Expandir a Pesquisa), p akt (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 a combat covid new ) or ((( e akt complex connection a ) or ( 7.5 nacl nino carlos nar ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j a combat covid new ) OR ((( e akt complex connection a ) OR ( 7.5 nacl nino carlos nar )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j a combat covid new ) or ((( e akt complex connection a ) or ( 7.5 nacl nino carlos nar ))))*.