Talvez deva tentar algumas variações de ortografia:
computer caries » computer crimes (Expandir a Pesquisa), computer classes (Expandir a Pesquisa), computer courses (Expandir a Pesquisa)
del computer » dal computer (Expandir a Pesquisa), delta computer (Expandir a Pesquisa), model computer (Expandir a Pesquisa)
caries now » caries new (Expandir a Pesquisa), caries con (Expandir a Pesquisa), caries do (Expandir a Pesquisa)
nat compr » la compr (Expandir a Pesquisa)
compr has » cpr has (Expandir a Pesquisa), computer has (Expandir a Pesquisa)
has never » have never (Expandir a Pesquisa), a never (Expandir a Pesquisa)
a claims » _ claims (Expandir a Pesquisa)
claims a » claims _ (Expandir a Pesquisa)
a newts » _ newts (Expandir a Pesquisa), a news (Expandir a Pesquisa), a newt (Expandir a Pesquisa)
e nat » e nata (Expandir a Pesquisa), e nao (Expandir a Pesquisa), e nas (Expandir a Pesquisa)
j del » y del (Expandir a Pesquisa), m del (Expandir a Pesquisa), _ del (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": "(((( e nat compr has never ) OR ( j a claims a newts ))) OR ( j del computer caries now ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( e nat compr has never ) OR ( j a claims a newts ))) OR ( j del computer caries now ))*.