The "Nelson Piquet Circuit" you are reffering to is Jacarepagua. Jacarepagua is the common name while Nelson Piquet is the official name. Like with stadiums, the official names are rarely used and will change from time to time to honor a special person. There is also a Nelson Piquet circuit in Brasilia, on the list as 'Brasilia'.
And I guess you could ad:
Italia - Vairano
Id also like to point out a mistake on your list. Its the Sa Marino one, there are no racing circuits in San Marino. The Autodromo Enzo e Dino Ferrari is located in Imola, Italia and is commonly known as Imola. It does host the San Marino GP because the RSM volunteered their countries name for the GP since the Italian Gran prix was already take by Monza. Several variations of Imola are already on your list so it would be best just to dlete this one.