Talvez deva tentar algumas variações de ortografia:
united computer » animed computer (Expandir a Pesquisa), unit computer (Expandir a Pesquisa), animated computer (Expandir a Pesquisa)
dental computer » dental computed (Expandir a Pesquisa), digital computer (Expandir a Pesquisa), annual computer (Expandir a Pesquisa)
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer crime (Expandir a Pesquisa)
nacl compared » acl compared (Expandir a Pesquisa), small compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer a (Expandir a Pesquisa), computer code (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
j dental » j delta (Expandir a Pesquisa), j dent (Expandir a Pesquisa), j deal (Expandir a Pesquisa)
case non » cause non (Expandir a Pesquisa), case note (Expandir a Pesquisa), phase non (Expandir a Pesquisa)
a united » a unified (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 dental computer case non ) or ( a united computer can new ))) or ( m nacl compared a new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j dental computer case non ) OR ( a united computer can new ))) OR ( m nacl compared a new )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j dental computer case non ) or ( a united computer can new ))) or ( m nacl compared a new ))*.