Talvez deva tentar algumas variações de ortografia:
what computers » how computers (Expandir a Pesquisa), iet computers (Expandir a Pesquisa), can computers (Expandir a Pesquisa)
compared case » compared can (Expandir a Pesquisa), companies case (Expandir a Pesquisa), comparing case (Expandir a Pesquisa)
rat compared » rats compared (Expandir a Pesquisa), rate compared (Expandir a Pesquisa), rates compared (Expandir a Pesquisa)
computers a » computers _ (Expandir a Pesquisa)
2 computer » ip computer (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
j what » rj what (Expandir a Pesquisa)
a now » a nowe (Expandir a Pesquisa), a new (Expandir a Pesquisa), a non (Expandir a Pesquisa)
j rat » j rath (Expandir a Pesquisa), _ rat (Expandir a Pesquisa), a rat (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 a now ) or ( _ 2 computer a now ))) or ( j rat compared case now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j what computers a now ) OR ( _ 2 computer a now ))) OR ( j rat compared case now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j what computers a now ) or ( _ 2 computer a now ))) or ( j rat compared case now ))*.