Talvez deva tentar algumas variações de ortografia:
phang ngoc » phan ngoc (Expandir a Pesquisa), phung ngoc (Expandir a Pesquisa), hang ngoc (Expandir a Pesquisa)
natl clamp » tail clamp (Expandir a Pesquisa)
can nose » can noise (Expandir a Pesquisa), can dose (Expandir a Pesquisa), can lose (Expandir a Pesquisa)
can pose » can post (Expandir a Pesquisa), can power (Expandir a Pesquisa), can close (Expandir a Pesquisa)
nat amp » mat amp (Expandir a Pesquisa), fat amp (Expandir a Pesquisa), rat amp (Expandir a Pesquisa)
amp dan » smp dan (Expandir a Pesquisa), lpmp dan (Expandir a Pesquisa)
dan non » than non (Expandir a Pesquisa), dan ning (Expandir a Pesquisa)
m phang » lim phang (Expandir a Pesquisa)
j natl » j nail (Expandir a Pesquisa), _ natl (Expandir a Pesquisa), j natali (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), e nat (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 amp dan non ) or ((( j natl clamp ((can nose) OR (can pose)) ) or ( j e m phang ngoc ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j nat amp dan non ) OR ((( j natl clamp ((can nose) OR (can pose)) ) OR ( j e m phang ngoc )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j nat amp dan non ) or ((( j natl clamp ((can nose) OR (can pose)) ) or ( j e m phang ngoc ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j nat amp dan non ) or ((( j natl clamp ((can nose) OR (can pose)) ) or ( j e m phang ngoc ))))*.