将AJAX搜索过滤器添加到结果 - PHP / MySQL

I'm trying to create a page that displays all the data from my database, but I'd like the ability to live filter the data through a search box, eliminating rows that don't match the query, almost exactly like DataTables. I can't use DataTables, however, because I'm finding it difficult to add the custom columns I have. I know how to make a search page that then displays results but not how to search within results.I'm trying to create a page that displays all t