Talvez deva tentar algumas variações de ortografia:
east mongol » east ongul (Expandir a Pesquisa), east congo (Expandir a Pesquisa), elso mongol (Expandir a Pesquisa)
mongol cas » mongol la (Expandir a Pesquisa), mongol a (Expandir a Pesquisa), mongolia case (Expandir a Pesquisa)
chimp can » chip can (Expandir a Pesquisa), camp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
clamp j » clamp _ (Expandir a Pesquisa)
cas now » case now (Expandir a Pesquisa), has now (Expandir a Pesquisa), cas new (Expandir a Pesquisa)
j east » _ east (Expandir a Pesquisa), c east (Expandir a Pesquisa), a east (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), e nat (Expandir a Pesquisa), j nay (Expandir a Pesquisa)
_ nat » _ net (Expandir a Pesquisa), _ nad (Expandir a Pesquisa), _ nab (Expandir a Pesquisa)
j noh » _ noh (Expandir a Pesquisa)
nacl » natl (Expandir a Pesquisa), nac (Expandir a Pesquisa), nucl (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 nat) OR (_ nat)) chimp can new ) or ((( m nacl clamp j noh ) or ( j east mongol cas now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( ((j nat) OR (_ nat)) chimp can new ) OR ((( m nacl clamp j noh ) OR ( j east mongol cas now )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( ((j nat) OR (_ nat)) chimp can new ) or ((( m nacl clamp j noh ) or ( j east mongol cas now ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( ((j nat) OR (_ nat)) chimp can new ) or ((( m nacl clamp j noh ) or ( j east mongol cas now ))))*.