You should first decide in which countries you would like to market your services. Then you should investigate whether government subsidies exist for students. In Germany for instance, it is good to have your school registered for "Bildungsulaub" (please look the word up in Leo or something)
The above would give you a very strong advantage in getting your school promoted under a countries government schemes, most of which offer free publicity to, and have distributed lists of registered schools.
The internet is also a wonderful promotion tool if used correctly.
Another successful way is to contact a school or schools in the country of your choice and get that school to partner with you.
All this naturally if I have understood your question correctly.
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