Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
local computer » novel computer (Expandir a Pesquisa), medical computer (Expandir a Pesquisa)
rats compared » rates compared (Expandir a Pesquisa)
compared case » compared cases (Expandir a Pesquisa), compared can (Expandir a Pesquisa), companies case (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
case new » cases new (Expandir a Pesquisa), cause new (Expandir a Pesquisa), caste new (Expandir a Pesquisa)
clamp ar » clamp a (Expandir a Pesquisa), clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
ar newts » can newts (Expandir a Pesquisa), _ newts (Expandir a Pesquisa), war news (Expandir a Pesquisa)
a clamp » _ clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
j local » bmj local (Expandir a Pesquisa), j locane (Expandir a Pesquisa)
a rats » fa rats (Expandir a Pesquisa), da rats (Expandir a Pesquisa), a rate (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: (((( a rats compared case new ) or ( j a clamp ar newts ))) or ( j local computer based now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a rats compared case new ) OR ( j a clamp ar newts ))) OR ( j local computer based now ))*.