Talvez deva tentar algumas variações de ortografia:
studies computer » students computer (Expandir a Pesquisa), studies completed (Expandir a Pesquisa), studies computing (Expandir a Pesquisa)
fails compared » nails compared (Expandir a Pesquisa), oils compared (Expandir a Pesquisa), soils compared (Expandir a Pesquisa)
nacl compare » nacl compared (Expandir a Pesquisa), acl compared (Expandir a Pesquisa), penal compare (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
j studies » 1 studies (Expandir a Pesquisa), j studien (Expandir a Pesquisa), 12 studies (Expandir a Pesquisa)
compare a » compare _ (Expandir a Pesquisa)
j fails » _ fails (Expandir a Pesquisa), 1 fails (Expandir a Pesquisa), 2 fails (Expandir a Pesquisa)
a nets » a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa), a netz (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: (((( j studies computer a neto ) OR ( j fails compared a nets ))) OR ( _ nacl compare a new ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j studies computer a neto ) or ( j fails compared a nets ))) or ( _ nacl compare a new ))*.