Talvez deva tentar algumas variações de ortografia:
apple computers » apple computer (Expandir a Pesquisa), applied computer (Expandir a Pesquisa), appleii computer (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
nat clamp » dnan clamp (Expandir a Pesquisa), rnap 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)
combe can » combe juan (Expandir a Pesquisa), combe jean (Expandir a Pesquisa), combe c (Expandir a Pesquisa)
can netw » can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa), can near (Expandir a Pesquisa)
j apple » _ apple (Expandir a Pesquisa), j appl (Expandir a Pesquisa), e apple (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
l combe » la combe (Expandir a Pesquisa), _ combe (Expandir a Pesquisa), l combs (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.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j apple computers can new ) OR ((( j nat clamp can now ) OR ( j l combe can netw ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j apple computers can new ) OR ((( j nat clamp can now ) OR ( j l combe can netw ))))*.