Talvez deva tentar algumas variações de ortografia:
comparing case » comparing cancer (Expandir a Pesquisa), compelling case (Expandir a Pesquisa), comparison case (Expandir a Pesquisa)
nat comparing » fat comparing (Expandir a Pesquisa), unit comparing (Expandir a Pesquisa), dast comparing (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer case (Expandir a Pesquisa), computer a (Expandir a Pesquisa)
la computer » lab computer (Expandir a Pesquisa), a computer (Expandir a Pesquisa), le computer (Expandir a Pesquisa)
combe can » pombe can (Expandir a Pesquisa), combe juan (Expandir a Pesquisa), combe jean (Expandir a Pesquisa)
can netw » can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa), can now (Expandir a Pesquisa)
case new » cases new (Expandir a Pesquisa), cause new (Expandir a Pesquisa), caste new (Expandir a Pesquisa)
a combe » la combe (Expandir a Pesquisa), a combes (Expandir a Pesquisa), a comb (Expandir a Pesquisa)
j nat » j nart (Expandir a Pesquisa), _ nat (Expandir a Pesquisa), a nat (Expandir a Pesquisa)
j la » j l (Expandir a Pesquisa), j da (Expandir a Pesquisa), j li (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: (((( j la computer can netw ) or ( j a combe can new ))) or ( j nat comparing case new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j la computer can netw ) OR ( j a combe can new ))) OR ( j nat comparing case new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j la computer can netw ) or ( j a combe can new ))) or ( j nat comparing case new ))*.