Talvez deva tentar algumas variações de ortografia:
cana ngoc » van ngoc (Expandir a Pesquisa), anh ngoc (Expandir a Pesquisa), cao ngoc (Expandir a Pesquisa)
nay clamp » dnan clamp (Expandir a Pesquisa), a clamp (Expandir a Pesquisa), dna clamp (Expandir a Pesquisa)
nat camp » fat camp (Expandir a Pesquisa), cpt camp (Expandir a Pesquisa), akt camp (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
clamp ar » clamp a (Expandir a Pesquisa), clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), phan ngoc (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can new (Expandir a Pesquisa)
sst com » smt com (Expandir a Pesquisa), sst cort (Expandir a Pesquisa)
ar nos » mar nos (Expandir a Pesquisa), par nos (Expandir a Pesquisa), pr nos (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), a nat (Expandir a Pesquisa)
j nay » j nagy (Expandir a Pesquisa), _ nay (Expandir a Pesquisa)
i sst » _ sst (Expandir a Pesquisa), i st (Expandir a Pesquisa), i gst (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 camp can now ) or ((( j nay clamp ar nos ) or ( i sst com ((cana ngoc) OR (can ngoc)) ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j nat camp can now ) OR ((( j nay clamp ar nos ) OR ( i sst com ((cana ngoc) OR (can ngoc)) )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j nat camp can now ) or ((( j nay clamp ar nos ) or ( i sst com ((cana ngoc) OR (can ngoc)) ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j nat camp can now ) or ((( j nay clamp ar nos ) or ( i sst com ((cana ngoc) OR (can ngoc)) ))))*.