Talvez deva tentar algumas variações de ortografia:
computer costs » computer codes (Expandir a Pesquisa), computer tests (Expandir a Pesquisa), computer courses (Expandir a Pesquisa)
icat computer » cat computer (Expandir a Pesquisa), iet computer (Expandir a Pesquisa), iot computer (Expandir a Pesquisa)
lab compared » labor compared (Expandir a Pesquisa), limb compared (Expandir a Pesquisa), swab compared (Expandir a Pesquisa)
compared can » compared case (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa)
nab computer » lab computer (Expandir a Pesquisa), a computer (Expandir a Pesquisa), b computer (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
costs new » hosts new (Expandir a Pesquisa), tests new (Expandir a Pesquisa)
j icat » _ icat (Expandir a Pesquisa)
_ nab » _ nad (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": "(( _ lab compared can new ) OR ((( _ nab computer costs new ) OR ( j icat computer a new ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ lab compared can new ) OR ((( _ nab computer costs new ) OR ( j icat computer a new ))))*.