Talvez deva tentar algumas variações de ortografia:
lim ngoc » diem ngoc (Expandir a Pesquisa), lieu ngoc (Expandir a Pesquisa), linh ngoc (Expandir a Pesquisa)
kim ngoc » kim noe (Expandir a Pesquisa), kim ngan (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
lam ngoc » pham ngoc (Expandir a Pesquisa), le ngoc (Expandir a Pesquisa), bao ngoc (Expandir a Pesquisa)
amp can » amp camp (Expandir a Pesquisa)
70 amp » 78 amp (Expandir a Pesquisa)
j nail » a nail (Expandir a Pesquisa), 3 nail (Expandir a Pesquisa), 5 nail (Expandir a Pesquisa)
nail j » nail _ (Expandir a Pesquisa), nail a (Expandir a Pesquisa), nail b (Expandir a Pesquisa)
nacl e » nacl en (Expandir a Pesquisa), nacl _ (Expandir a Pesquisa), nacl a (Expandir a Pesquisa)
e lam » e lamb (Expandir a Pesquisa), l lam (Expandir a Pesquisa), _ lam (Expandir a Pesquisa)
j 70 » _ 70 (Expandir a Pesquisa), a 70 (Expandir a Pesquisa), σ 70 (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 70 amp can new ) or ((( j nail j ((lim ngoc) OR (kim ngoc)) ) or ( 3.5 nacl e lam ngoc ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j 70 amp can new ) OR ((( j nail j ((lim ngoc) OR (kim ngoc)) ) OR ( 3.5 nacl e lam ngoc )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j 70 amp can new ) or ((( j nail j ((lim ngoc) OR (kim ngoc)) ) or ( 3.5 nacl e lam ngoc ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j 70 amp can new ) or ((( j nail j ((lim ngoc) OR (kim ngoc)) ) or ( 3.5 nacl e lam ngoc ))))*.