Talvez deva tentar algumas variações de ortografia:
comparing cases » comparing causes (Expandir a Pesquisa), comparing case (Expandir a Pesquisa), comparing mases (Expandir a Pesquisa)
what computers » how computers (Expandir a Pesquisa), iet computers (Expandir a Pesquisa), what consumers (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
computer can » computer case (Expandir a Pesquisa), computer a (Expandir a Pesquisa), computer code (Expandir a Pesquisa)
2 computer » _ computer (Expandir a Pesquisa), a computer (Expandir a Pesquisa), 3d computer (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can new (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
j what » rj what (Expandir a Pesquisa), 1 what (Expandir a Pesquisa), 3 what (Expandir a Pesquisa)
j rct » _ rct (Expandir a Pesquisa), a rct (Expandir a Pesquisa), 2 rct (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 what computers can now ) or ( 3 2 computer can now ))) or ( j rct comparing cases new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j what computers can now ) OR ( 3 2 computer can now ))) OR ( j rct comparing cases new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j what computers can now ) or ( 3 2 computer can now ))) or ( j rct comparing cases new ))*.