The phrase "specific topic" refers to a narrow subject or area of interest. It means focusing on a particular subject instead of talking about a broad range of things. Full definition
Representatives will be on hand to answer questions on specific topics of interest. (molinarofordutchess.com)
In - depth lessons on specific topics of writing craft, based on your work - in - progress or completed manuscript. (editorialdepartment.com)
A librarian can advance in his / her career by attending courses or seminars on specific topics in which s / he wants to obtain qualification. (topsampleresume.com)