Talvez deva tentar algumas variações de ortografia:
cases compared » diseases compared (Expandir a Pesquisa)
case compared » care compared (Expandir a Pesquisa), cast compared (Expandir a Pesquisa), casi compared (Expandir a Pesquisa)
compared can » compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa), companies can (Expandir a Pesquisa)
cat computer » cost computer (Expandir a Pesquisa), fast computer (Expandir a Pesquisa), ut computer (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer case (Expandir a Pesquisa), computer a (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), cao ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa)
can netw » can new (Expandir a Pesquisa), can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa)
c cases » c causes (Expandir a Pesquisa), c casey (Expandir a Pesquisa), c casas (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: (((( c cases compared can ngoc ) or ( c case compared _ ngoc ))) or ( _ cat computer can netw ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( c cases compared can ngoc ) OR ( c case compared _ ngoc ))) OR ( _ cat computer can netw )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( c cases compared can ngoc ) or ( c case compared _ ngoc ))) or ( _ cat computer can netw ))*.