Search Plus is a unique advanced search engine plugin which comes with user friendly rules, templates, support for filtering categories, authors, date, tags and many other features one can may find useful in a WP based search engine.
Demo https://codecanyon.net/item/search-plus-advanced-search-engine-wordpress-plugin/22092652
Downloadhttps://www.filecad.com/mw32/Search-Plus-v1.2---Advanced-Search-Engine-Plugin.rar