Need some advice about lack of research experience

[Mia_min]

Hi all, 

I'm a prospective applicant for a masters degree in CS in South Korea. As I mentioned in the title, I have done some other kinds of activities during undergraduate school rather than research experience like participating in a South Korean government scholarship program. I have been interested in Computer Graphics, so want to deeply study more and further would like to work in related industries. But it's just all to take a couple of classes. My question is, how can I cover my paucity of research experience to apply the thesis option and find an advisor? I'd applied at several schools in last years, but I didn't hear any good news. If there is someone who has a similar background with me please reply me!