Talvez deva tentar algumas variações de ortografia:
digital computer » digital computers (Expandir a Pesquisa), digital competence (Expandir a Pesquisa)
comparing case » comparing cancer (Expandir a Pesquisa), compelling case (Expandir a Pesquisa), comparison case (Expandir a Pesquisa)
al comparing » 19 comparing (Expandir a Pesquisa), 2 comparing (Expandir a Pesquisa), 1 comparing (Expandir a Pesquisa)
compared law » compared a (Expandir a Pesquisa), compared can (Expandir a Pesquisa), compared _ (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
case new » cases new (Expandir a Pesquisa), cause new (Expandir a Pesquisa), caste new (Expandir a Pesquisa)
law new » jaw new (Expandir a Pesquisa)
j al » j a (Expandir a Pesquisa), j l (Expandir a Pesquisa)
j ct » j c (Expandir a Pesquisa), j et (Expandir a Pesquisa), j st (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 digital computer a new ) or ((( j al comparing case new ) or ( j ct compared law new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a digital computer a new ) OR ((( j al comparing case new ) OR ( j ct compared law new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a digital computer a new ) or ((( j al comparing case new ) or ( j ct compared law new ))))*.