Get all segments for more than one A/B tests running simultaneously with getAssignedTestSegments method of ABMgr

Hi, I have 3 tests A/B tests running simultaneously. I am using getAssignedTestSegments to fetch the values of segments of A/B test. But it only gives me one result (instead 2 or 3). How can I get the values of all running A/B tests segments? or we cannot get it. I ad somewhere that we can have upto 12 segments running simultaneously. I need to pass all running segments to dataLayer.

Thanks in advance