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 care » congo case (Expandir a Pesquisa), congo cas (Expandir a Pesquisa), congo art (Expandir a Pesquisa)
comp san » comp can (Expandir a Pesquisa), comp sn (Expandir a Pesquisa), comp santa (Expandir a Pesquisa)
care now » care new (Expandir a Pesquisa)
et comp » et compl (Expandir a Pesquisa), et com (Expandir a Pesquisa), et comb (Expandir a Pesquisa)
san now » can now (Expandir a Pesquisa), san new (Expandir a Pesquisa), plan now (Expandir a Pesquisa)
a nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), a naci (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
c east » _ east (Expandir a Pesquisa), c easter (Expandir a Pesquisa)
j et » j e (Expandir a Pesquisa), j st (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 et comp san now ) or ((( ((a nacl) OR (3 nacl)) clamp _ noh ) or ( c east congo care now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j et comp san now ) OR ((( ((a nacl) OR (3 nacl)) clamp _ noh ) OR ( c east congo care now )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j et comp san now ) or ((( ((a nacl) OR (3 nacl)) clamp _ noh ) or ( c east congo care now ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j et comp san now ) or ((( ((a nacl) OR (3 nacl)) clamp _ noh ) or ( c east congo care now ))))*.