Is it the campus of Zhujiang Road in Hexi District? If so, take Metro Line 3 from Tianjin Railway Station (high-tech zone direction), take Metro Line 1 at Yingkou Road Station (Sara direction) and get off at University of Finance and Economics Station. It takes more than half an hour to get there. Ticket price, 4 yuan.
It is estimated that it costs more than 30 yuan to take a taxi, and it is not necessarily faster than the subway if there is traffic jam.