A powerful ajax search engine for WordPress. Add a live search form to your site with filters. Custom post types, custom fields, categories supported
Ultimate WP Query Search Filter lets you filter searches through post types, taxonomies and meta fields. Results displayed via search template or Ajax
Category Wise Search Widget plugin.You have option search specific category content.
Advance WP Query Search Filter let you search through post type, taxonomy and meta field.
Ajax WP Query Search Filter let you search through post type, taxonomy and meta field.
This plugin Restricted your wordpress website search as per your desire.