Talvez deva tentar algumas variações de ortografia:
computer sided » computer aided (Expandir a Pesquisa), computer guided (Expandir a Pesquisa), computer video (Expandir a Pesquisa)
nail computer » daily computer (Expandir a Pesquisa), dal computer (Expandir a Pesquisa), il computer (Expandir a Pesquisa)
natl comps » al comps (Expandir a Pesquisa), battle comps (Expandir a Pesquisa)
dna clamp » a clamp (Expandir a Pesquisa)
sided now » sides now (Expandir a Pesquisa), sided non (Expandir a Pesquisa), sided ngs (Expandir a Pesquisa)
clamp j » clamp _ (Expandir a Pesquisa)
j newts » _ newts (Expandir a Pesquisa), j newton (Expandir a Pesquisa)
j natl » _ natl (Expandir a Pesquisa), j nat (Expandir a Pesquisa), j natali (Expandir a Pesquisa)
j nail » _ nail (Expandir a Pesquisa), a nail (Expandir a Pesquisa), 3 nail (Expandir a Pesquisa)
j dna » _ dna (Expandir a Pesquisa), a dna (Expandir a Pesquisa), 1 dna (Expandir a Pesquisa)
negra » negro (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 comps la negra ) OR ( j dna clamp j newts ))) OR ( j nail computer sided now ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j natl comps la negra ) OR ( j dna clamp j newts ))) OR ( j nail computer sided now ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j natl comps la negra ) OR ( j dna clamp j newts ))) OR ( j nail computer sided now ))*.