Talvez deva tentar algumas variações de ortografia:
computer classes » computer clusters (Expandir a Pesquisa), computer cluster (Expandir a Pesquisa), computer case (Expandir a Pesquisa)
il computer » dal computer (Expandir a Pesquisa), vhdl computer (Expandir a Pesquisa)
classes now » classes new (Expandir a Pesquisa), classes nos (Expandir a Pesquisa), classes na (Expandir a Pesquisa)
clamp can » clamp ar (Expandir a Pesquisa), clamp cum (Expandir a Pesquisa), clamp jaw (Expandir a Pesquisa)
dna clamp » a clamp (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa), can new (Expandir a Pesquisa)
l clamp » _ clamp (Expandir a Pesquisa), c clamp (Expandir a Pesquisa), a clamp (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
a newts » _ newts (Expandir a Pesquisa), a news (Expandir a Pesquisa), a newt (Expandir a Pesquisa)
1 dna » _ dna (Expandir a Pesquisa), a dna (Expandir a Pesquisa)
_ il » _ l (Expandir a Pesquisa), _ i (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 l clamp can near ) or ( 1 dna clamp a newts ))) or ( _ il computer classes now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j l clamp can near ) OR ( 1 dna clamp a newts ))) OR ( _ il computer classes now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j l clamp can near ) or ( 1 dna clamp a newts ))) or ( _ il computer classes now ))*.