Talvez deva tentar algumas variações de ortografia:
east congo » fast congo (Expandir a Pesquisa), east mongol (Expandir a Pesquisa), west congo (Expandir a Pesquisa)
congo art » congo care (Expandir a Pesquisa), congo a (Expandir a Pesquisa), congo drc (Expandir a Pesquisa)
narr amp » narc amp (Expandir a Pesquisa), narov amp (Expandir a Pesquisa), carr amy (Expandir a Pesquisa)
amp than » ampk than (Expandir a Pesquisa), camp than (Expandir a Pesquisa), amp thonn (Expandir a Pesquisa)
clamp j » clamp _ (Expandir a Pesquisa)
art now » act now (Expandir a Pesquisa), art new (Expandir a Pesquisa), art non (Expandir a Pesquisa)
j narr » l narr (Expandir a Pesquisa), j nair (Expandir a Pesquisa), j nare (Expandir a Pesquisa)
j east » _ east (Expandir a Pesquisa), 2 east (Expandir a Pesquisa), a east (Expandir a Pesquisa)
j noh » _ noh (Expandir a Pesquisa)
nacl » natl (Expandir a Pesquisa), nac (Expandir a Pesquisa), nail (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 narr amp than non ) or ((( m (nacl OR nucl) clamp j noh ) or ( j east congo art now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j narr amp than non ) OR ((( m (nacl OR nucl) clamp j noh ) OR ( j east congo art now )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j narr amp than non ) or ((( m (nacl OR nucl) clamp j noh ) or ( j east congo art now ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j narr amp than non ) or ((( m (nacl OR nucl) clamp j noh ) or ( j east congo art now ))))*.