Sub-forms (such as Certifications) be included in Reports

Sub-forms (such as Certifications) be included in Reports

There is a sub-form under Candidates called Certifications. However, the information we enter there can't be used in the left-hand "filter candidates by" or in the Zoho Recruit reports. and I'm being asked if that's something we could include in a report. Doesn't appear in the field list or associated items available for reports, however. So I'm guessing the answer is no. Is there a workaround