should undocumented immigrants have more rights to continue their education?

I am assuming you mean do they have more rights to continue their education in the country in which they have illegally entered? If this is the case then no; they should not. Priority should always be given to the citizens of a country and not to those that have not used the correct channels to enter that country. People in detention centres for example though should be given access to courses such as English or vocational and trade courses while they await a decision on their status; but they most definitely should not be given priority over a citizen of the country they are detained in!