Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
compared case » compared cases (Expandir a Pesquisa), compare care (Expandir a Pesquisa), companies case (Expandir a Pesquisa)
cat compared » cast compared (Expandir a Pesquisa), cats compared (Expandir a Pesquisa), ct compared (Expandir a Pesquisa)
compared can » compared a (Expandir a Pesquisa), compared law (Expandir a Pesquisa), compared cases (Expandir a Pesquisa)
ace compared » age compared (Expandir a Pesquisa), ice compared (Expandir a Pesquisa), acute compared (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
can ngoc » van ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), phan ngoc (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
j vhdl » _ vhdl (Expandir a Pesquisa), a vhdl (Expandir a Pesquisa)
_ ace » _ act (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: (((( _ cat compared can ngoc ) or ( j vhdl computer based now ))) or ( _ ace compared case now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( _ cat compared can ngoc ) OR ( j vhdl computer based now ))) OR ( _ ace compared case now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( _ cat compared can ngoc ) or ( j vhdl computer based now ))) or ( _ ace compared case now ))*.