Some of them are episode titles of the anime.
Translations can be found in the following sites, but they may be unofficial:
https://en.wikipedia.org/wiki/List_o...illes_episodes
http://www.animenewsnetwork.com/ency...id=451&page=25
The "official" translations would be the ones by Right Stuf; I can't find a list though.
Examples of the differences for episode 1:
Wikipedia: "Oscar, the Destiny of a Rose"
ANN: "Oscar! The Destiny of Roses"
Right Stuf: "Oscar! The Destiny of the Rose"