Talvez deva tentar algumas variações de ortografia:
model compared » model compound (Expandir a Pesquisa), model complex (Expandir a Pesquisa), model combined (Expandir a Pesquisa)
about computer » ut computer (Expandir a Pesquisa), about complex (Expandir a Pesquisa), without computer (Expandir a Pesquisa)
nail computer » daily computer (Expandir a Pesquisa), dal computer (Expandir a Pesquisa), il computer (Expandir a Pesquisa)
computer case » computer based (Expandir a Pesquisa), computer code (Expandir a Pesquisa), computer crime (Expandir a Pesquisa)
compared case » compared can (Expandir a Pesquisa), companies case (Expandir a Pesquisa), comparing case (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
j about » 3 about (Expandir a Pesquisa), 8 about (Expandir a Pesquisa), j abou (Expandir a Pesquisa)
j model » j modolo (Expandir a Pesquisa), j monder (Expandir a Pesquisa)
j nail » _ nail (Expandir a Pesquisa), a nail (Expandir a Pesquisa), 3 nail (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ now (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 nail computer a now ) or ( j about computer case now ))) or ( j model compared case now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j nail computer a now ) OR ( j about computer case now ))) OR ( j model compared case now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nail computer a now ) or ( j about computer case now ))) or ( j model compared case now ))*.