A university cleaner in southwestern China has secured a place in a master’s programme after a year of self-study while raising two children.Li Jia, 33, from Chengdu in Sichuan province, works full-time as a cleaner at Chengdu University of Technology.She and her husband once ran a restaurant near the campus, but it closed after struggling to stay afloat, according to local reports.Li later took a sanitation job at the university, valuing its stability, proximity to home and fixed hours,...