Your email address is Russian. If you are a citizen of Russia with a university degree from Russia, you will be unable to acquire a residency permit as a teacher of English. If you have received your degree from one of the approved 'English native language countries', I'm told that some provinces will accept you.

If Shenzhen City College is willing to 'game the system' by stating that you will be teaching Russian, they may be able to obtain a residency permit for you as a Russian teacher. I know of Universities in Dongbei that have been doing this, but they actually have Russian language departments and significant Russian communities in their city.

The same process occurs when Japanese or Korean nationals end up teaching oral English in a university language department.