Talvez deva tentar algumas variações de ortografia:
nacl compr » nacl compared (Expandir a Pesquisa), nacl complex (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa), compared can (Expandir a Pesquisa)
chimp can » chirp can (Expandir a Pesquisa), camp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
chip can » hip can (Expandir a Pesquisa), chip a (Expandir a Pesquisa), chip ce (Expandir a Pesquisa)
can non » dan non (Expandir a Pesquisa), than non (Expandir a Pesquisa)
cl camp » c camp (Expandir a Pesquisa), el camp (Expandir a Pesquisa), cell camp (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
camp c » champ c (Expandir a Pesquisa), camp _ (Expandir a Pesquisa), camp a (Expandir a Pesquisa)
c netw » c neto (Expandir a Pesquisa), soc netw (Expandir a Pesquisa)
j al » j a (Expandir a Pesquisa), j l (Expandir a Pesquisa)
j cl » j c (Expandir a Pesquisa), j l (Expandir a Pesquisa), j ch (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: (( 3 nacl compr can non ) or ((( j al ((chimp can) OR (chip can)) netw ) or ( j cl camp c netw ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( 3 nacl compr can non ) OR ((( j al ((chimp can) OR (chip can)) netw ) OR ( j cl camp c netw )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( 3 nacl compr can non ) or ((( j al ((chimp can) OR (chip can)) netw ) or ( j cl camp c netw ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( 3 nacl compr can non ) or ((( j al ((chimp can) OR (chip can)) netw ) or ( j cl camp c netw ))))*.