Talvez deva tentar algumas variações de ortografia:
thanh ngoc » khanh ngoc (Expandir a Pesquisa), anh ngoc (Expandir a Pesquisa), thai ngoc (Expandir a Pesquisa)
nay clamp » dnan clamp (Expandir a Pesquisa), a clamp (Expandir a Pesquisa), dna clamp (Expandir a Pesquisa)
ton thanh » tran thanh (Expandir a Pesquisa), tung thanh (Expandir a Pesquisa), thi thanh (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can new (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
c nart » _ nart (Expandir a Pesquisa), c nast (Expandir a Pesquisa), c narp (Expandir a Pesquisa)
j tett » b tett (Expandir a Pesquisa), j teat (Expandir a Pesquisa), j test (Expandir a Pesquisa)
c nar » c nair (Expandir a Pesquisa), c narp (Expandir a Pesquisa), c nmr (Expandir a Pesquisa)
j nay » j nagy (Expandir a Pesquisa), _ nay (Expandir a Pesquisa)
a non » _ non (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: (( ((c nar) or (c nart)) camp can now ) or ((( j nay clamp a non ) or ( j tett ton thanh ngoc ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( ((c nar) OR (c nart)) camp can now ) OR ((( j nay clamp a non ) OR ( j tett ton thanh ngoc )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( ((c nar) or (c nart)) camp can now ) or ((( j nay clamp a non ) or ( j tett ton thanh ngoc ))))*.