I want to know: how to get to Lanzhou Yineng Holiday Studios by bus from Lanzhou Institute of Education?

There is no direct bus. You can reverse at Xiguan Cross, get off at Qilihe Bridge and go back (east). You can see it. Just cross the street.

Take bus 143 and get off at Xiguan Cross at the terminal, then take bus 50, bus 77, bus 103, bus 1 8, bus 3 1, bus 58, bus 59 and bus 7/kloc-0.