Talvez deva tentar algumas variações de ortografia:
haart compared » aspart compared (Expandir a Pesquisa), act compared (Expandir a Pesquisa), graft compared (Expandir a Pesquisa)
ray computer » ray computed (Expandir a Pesquisa), uy computer (Expandir a Pesquisa), ip computer (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
can netw » can newts (Expandir a Pesquisa), can now (Expandir a Pesquisa), can near (Expandir a Pesquisa)
j haart » _ haart (Expandir a Pesquisa), j hart (Expandir a Pesquisa), a haart (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
narr » nar (Expandir a Pesquisa), barr (Expandir a Pesquisa), nair (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": "(((( x ray computer a netw ) OR ( l narr compr can netw ))) OR ( j haart compared can new ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( x ray computer a netw ) OR ( l narr compr can netw ))) OR ( j haart compared can new ))*.