Talvez deva tentar algumas variações de ortografia:
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer can (Expandir a Pesquisa)
rate compared » rates compared (Expandir a Pesquisa), rats compared (Expandir a Pesquisa), care compared (Expandir a Pesquisa)
compared can » compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa), companies can (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)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
a clamp » _ clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
j small » 1 small (Expandir a Pesquisa), 2 small (Expandir a Pesquisa)
j rate » j rane (Expandir a Pesquisa), j race (Expandir a Pesquisa), j rath (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": "(((( j rate compared can new ) OR ( j a clamp ar newts ))) OR ( j small computer case now ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j rate compared can new ) OR ( j a clamp ar newts ))) OR ( j small computer case now ))*.