Talvez deva tentar algumas variações de ortografia:
nab clamp » dnan clamp (Expandir a Pesquisa), a clamp (Expandir a Pesquisa), new clamp (Expandir a Pesquisa)
narr chip » ahr chip (Expandir a Pesquisa)
dna clamp » a clamp (Expandir a Pesquisa)
j eaton » _ eaton (Expandir a Pesquisa), w eaton (Expandir a Pesquisa)
eaton c » eaton j (Expandir a Pesquisa), eaton _ (Expandir a Pesquisa), eaton m (Expandir a Pesquisa)
cas now » case now (Expandir a Pesquisa), has now (Expandir a Pesquisa), cas new (Expandir a Pesquisa)
j narr » l narr (Expandir a Pesquisa), j nair (Expandir a Pesquisa), j nare (Expandir a Pesquisa)
chip a » chip _ (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ now (Expandir a Pesquisa)
j noh » _ noh (Expandir a Pesquisa)
c cas » c case (Expandir a Pesquisa), c cas9 (Expandir a Pesquisa), c casa (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 narr chip a now ) or ((( _ ((nab clamp) OR (dna clamp)) j noh ) or ( j eaton c cas now ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j narr chip a now ) OR ((( _ ((nab clamp) OR (dna clamp)) j noh ) OR ( j eaton c cas now )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j narr chip a now ) or ((( _ ((nab clamp) OR (dna clamp)) j noh ) or ( j eaton c cas now ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j narr chip a now ) or ((( _ ((nab clamp) OR (dna clamp)) j noh ) or ( j eaton c cas now ))))*.