Talvez deva tentar algumas variações de ortografia:
held computers » held computer (Expandir a Pesquisa), handheld computers (Expandir a Pesquisa)
world computer » world consumer (Expandir a Pesquisa)
day compared » days compared (Expandir a Pesquisa), daily compared (Expandir a Pesquisa), stay compared (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
j world » 1 world (Expandir a Pesquisa), 3 world (Expandir a Pesquisa), j wold (Expandir a Pesquisa)
a news » wpa news (Expandir a Pesquisa), cua news (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
_ held » _ hela (Expandir a Pesquisa)
a day » _ day (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a day compared a news ) OR ((( j world computer a netw ) OR ( _ held computers _ netw ))))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a day compared a news ) or ((( j world computer a netw ) or ( _ held computers _ netw ))))*.