Talvez deva tentar algumas variações de ortografia:
colera can » colera en (Expandir a Pesquisa), colera na (Expandir a Pesquisa), colera nao (Expandir a Pesquisa)
nacl comet » nacl content (Expandir a Pesquisa), nacl complex (Expandir a Pesquisa)
comet van » comer vann (Expandir a Pesquisa), comet jean (Expandir a Pesquisa), comet a (Expandir a Pesquisa)
van ngoc » tran ngoc (Expandir a Pesquisa), vu ngoc (Expandir a Pesquisa), bao ngoc (Expandir a Pesquisa)
can net » can next (Expandir a Pesquisa), dan net (Expandir a Pesquisa), can nt (Expandir a Pesquisa)
ntr amp » tr amp (Expandir a Pesquisa), andr amp (Expandir a Pesquisa), petr amp (Expandir a Pesquisa)
amp can » amp camp (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
5 ntr » _ ntr (Expandir a Pesquisa), 5 nor (Expandir a Pesquisa)
j el » j l (Expandir a Pesquisa), j e (Expandir a Pesquisa), j et (Expandir a Pesquisa)
j al » j a (Expandir a Pesquisa), j l (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 el) OR (j al)) colera can net ) or ((( 5 ntr amp can new ) or ( 3 nacl comet van ngoc ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( ((j el) OR (j al)) colera can net ) OR ((( 5 ntr amp can new ) OR ( 3 nacl comet van ngoc ))))*.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( ((j el) OR (j al)) colera can net ) or ((( 5 ntr amp can new ) or ( 3 nacl comet van ngoc ))))*".