Talvez deva tentar algumas variações de ortografia:
computer cases » computer case (Expandir a Pesquisa), computer classes (Expandir a Pesquisa), computer caries (Expandir a Pesquisa)
local computer » novel computer (Expandir a Pesquisa), medical computer (Expandir a Pesquisa)
dna clamp » a clamp (Expandir a Pesquisa)
clamp can » clamp a (Expandir a Pesquisa), clamp ar (Expandir a Pesquisa), clamp cum (Expandir a Pesquisa)
can newts » can new (Expandir a Pesquisa), can newly (Expandir a Pesquisa)
cases now » cases new (Expandir a Pesquisa), cases non (Expandir a Pesquisa), case now (Expandir a Pesquisa)
natl cam » natl acad (Expandir a Pesquisa), natla sam (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa), can new (Expandir a Pesquisa)
j local » bmj local (Expandir a Pesquisa), j locane (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nail (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
a dna » _ dna (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 natl cam can near ) or ( a dna clamp can newts ))) or ( j local computer cases now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl cam can near ) OR ( a dna clamp can newts ))) OR ( j local computer cases now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl cam can near ) or ( a dna clamp can newts ))) or ( j local computer cases now ))*.