Talvez deva tentar algumas variações de ortografia:
unit computers » units computers (Expandir a Pesquisa), unit computer (Expandir a Pesquisa), iet computers (Expandir a Pesquisa)
cost computer » chest computed (Expandir a Pesquisa), joint computer (Expandir a Pesquisa), about computer (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
nat compared » rat compared (Expandir a Pesquisa), cat compared (Expandir a Pesquisa), fat 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)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
j cost » j costa (Expandir a Pesquisa), j coast (Expandir a Pesquisa), j colt (Expandir a Pesquisa)
_ unit » _ united (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: (( _ nat compared a netw ) or ((( j cost computer a netw ) or ( _ unit computers can new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ nat compared a netw ) OR ((( j cost computer a netw ) OR ( _ unit computers can new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ nat compared a netw ) or ((( j cost computer a netw ) or ( _ unit computers can new ))))*.