Talvez deva tentar algumas variações de ortografia:
tablet computers » tablet computer (Expandir a Pesquisa)
compared cause » compared case (Expandir a Pesquisa), complex cause (Expandir a Pesquisa), compare mouse (Expandir a Pesquisa)
nayl compared » nacl compared (Expandir a Pesquisa), nail compared (Expandir a Pesquisa), acl compared (Expandir a Pesquisa)
computer age » computer image (Expandir a Pesquisa), computer a (Expandir a Pesquisa), computer aided (Expandir a Pesquisa)
yl computer » il computer (Expandir a Pesquisa), dal computer (Expandir a Pesquisa), apl computer (Expandir a Pesquisa)
cause new » causes new (Expandir a Pesquisa), use new (Expandir a Pesquisa), cause non (Expandir a Pesquisa)
j tablet » _ tablet (Expandir a Pesquisa), a tablet (Expandir a Pesquisa), j tables (Expandir a Pesquisa)
age nowe » age now (Expandir a Pesquisa), age known (Expandir a Pesquisa), age lower (Expandir a Pesquisa)
j nayl » a nayl (Expandir a Pesquisa), j nay (Expandir a Pesquisa), j nail (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 tablet computers _ now ) or ( 2 yl computer age nowe ))) or ( j nayl compared cause new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j tablet computers _ now ) OR ( 2 yl computer age nowe ))) OR ( j nayl compared cause new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j tablet computers _ now ) or ( 2 yl computer age nowe ))) or ( j nayl compared cause new ))*.