Talvez deva tentar algumas variações de ortografia:
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
dam computer » cam computer (Expandir a Pesquisa), dem computer (Expandir a Pesquisa), beam computer (Expandir a Pesquisa)
natl camp » al camp (Expandir a Pesquisa), fat camp (Expandir a Pesquisa)
dna clamp » a clamp (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa), can new (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
j natl » j nail (Expandir a Pesquisa), _ natl (Expandir a Pesquisa), j nat (Expandir a Pesquisa)
a dna » _ dna (Expandir a Pesquisa)
a dam » a dama (Expandir a Pesquisa), a day (Expandir a Pesquisa), _ dam (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 camp can near ) or ( a dna clamp a new ))) or ( a dam computer case now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j natl camp can near ) OR ( a dna clamp a new ))) OR ( a dam computer case now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl camp can near ) or ( a dna clamp a new ))) or ( a dam computer case now ))*.