Are Vanjari Hound and Chien-gris names of dog breeds?
yes
Title: Chien-gris
Passage: The Chien-gris a.k.a. Gris de Saint-Louis ("Grey St. Louis Hound") was a breed of dog, now extinct, which originated in Medieval times.  Like the Chien de Saint-Hubert it was a scenthound, and formed part of the royal packs of France, which were composed, from about 1250 till 1470, exclusively of hounds of this type.  According to King Charles IX, (1550–1574) they supposedly were introduced to France through Saint Louis (i.e. King Louis IX, 1226–1270), who had encountered these hounds while a prisoner during the Crusades, and subsequently received some as a gift.  Old writers on hunting liked to ascribe an ancient and remote origin to their hounds, and these were claimed to be originally from Tartary.
Title: Vanjari Hound
Passage: The Vanjari Hound (Malayalam: വഞ്ചാരി ഹൗണ്ട് ) is a breed of dog found in India.  It is a greyhound-type dog used by the nomadic Vanjari of Maharashtra, primarily as a sighthound in hunting.  However, it has also been used as a guard dog and a herding dog.  The breed is currently at risk from interbreeding with other dog breeds.
Title: List of U.S. state dogs
Passage: Twelve states of the United States have designated an official state dog breed.  Maryland was the first state to name a dog breed as a state symbol, naming the Chesapeake Bay Retriever in 1964.  Pennsylvania followed the year after, naming the Great Dane as its official breed.  Dog breeds are mostly affiliated with the states that they originated in.  North Carolina chose the Plott Hound as it was the only dog breed indigenous to the state.
Chien-gris Vanjari Hound