JSON structure used it is similar with TipueSearch JSON mode file structure (https://github.com/Tipue/Tipue-Search)
For Bootstrap Data Table (BDT) see (https://github.com/pguso/bootstrap-data-table/)
The JSON file edited with this script was used on the site:
http:https://studiisicomunicaribacau.ro/
Try Search and Advanced Search and see the results.