Talvez deva tentar algumas variações de ortografia:
nab clamp » dnan clamp (Expandir a Pesquisa), a clamp (Expandir a Pesquisa), dna clamp (Expandir a Pesquisa)
chip can » hip can (Expandir a Pesquisa), chip a (Expandir a Pesquisa), chip c (Expandir a Pesquisa)
chip ce » chip cell (Expandir a Pesquisa)
clamp j » clamp _ (Expandir a Pesquisa)
j eaton » j keaton (Expandir a Pesquisa), _ 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 nart » _ nart (Expandir a Pesquisa), j nare (Expandir a Pesquisa), j narr (Expandir a Pesquisa)
_ nab » _ nad (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 nart ((chip can) OR (chip ce)) now ) OR ((( _ nab clamp j noh ) OR ( j eaton c cas now ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j nart ((chip can) OR (chip ce)) now ) OR ((( _ nab clamp j noh ) OR ( j eaton c cas now ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j nart ((chip can) OR (chip ce)) now ) OR ((( _ nab clamp j noh ) OR ( j eaton c cas now ))))*.