Talvez deva tentar algumas variações de ortografia:
nacl compr » nacl compared (Expandir a Pesquisa), nacl complex (Expandir a Pesquisa)
dnan clamp » dna clamp (Expandir a Pesquisa), dna clamps (Expandir a Pesquisa), can clamp (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa), compared can (Expandir a Pesquisa)
nat clamp » rnap clamp (Expandir a Pesquisa), a clamp (Expandir a Pesquisa), dna clamp (Expandir a Pesquisa)
clamp can » clamp a (Expandir a Pesquisa), clamp ar (Expandir a Pesquisa), clamp cum (Expandir a Pesquisa)
can netw » can new (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa)
can non » dan non (Expandir a Pesquisa), than non (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), a nacl (Expandir a Pesquisa)
j dnan » _ dnan (Expandir a Pesquisa), j dna (Expandir a Pesquisa), a dnan (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: (( 3 nacl compr can non ) or ((( j nat clamp can netw ) OR ( j dnan clamp can netw ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( 3 nacl compr can non ) OR ((( j nat clamp can netw ) OR ( j dnan clamp can netw )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( 3 nacl compr can non ) or ((( j nat clamp can netw ) OR ( j dnan clamp can netw ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( 3 nacl compr can non ) or ((( j nat clamp can netw ) OR ( j dnan clamp can netw ))))*.