"discusses that" is a correct and usable part of a sentence in written English.
You can use it when you want to introduce an idea which someone has suggested or talked about. For example: "The professor discusses that the key to success is hard work and dedication."
The book "Converging Traditions in the Digital Moving Image: Architectures of Illusion, Images of Truth" discusses that while Seifer is seen as a show-off and a troublemaker, protagonist Squall Leonhart identifies with him.
In a conference call with reporters on Monday, Cowell, who seemed to think the show would return, said his role could change: "I might have a different kind of role -- we haven't discusses that yet".
The clip is based mainly on his European performances, and Slash discusses that tour as well as his U.S. concert schedule, his solo album, and more in this HuffPost interview.
Discusses that, although many Democrats are abandoning McGovern's candidacy, they are supporting local & Congressional Dem.
Catherine Tice, associate publisher of the New York Review of Books, discusses that magazine's infamously highbrow personal ads.
A science museum that does not have the courage to show a film that discusses that central framework is not worthy of the name.
Today, Glenn Kenny, at Some Came Running, discusses that post and several other responses to the Times review, and his remarks go far to clarify the underlying issues.
The reference to Abbeville prompts Wilkerson to visit, and in his narration he discusses that town's crucial place in the civil-rights movement.
Wolton discusses that image-fabrication in relation to Strauss-Kahn's arrest: We're in an illusion of equality: the treatment is the same for all American citizens, so, also, for DSK.
In one of Lord's other books, "A Giacometti Portrait," Giacometti discusses that time: "During those early years I earned my living by making objects, lamps, vases and such things, for the decorator Jean-Michel Frank.
