Magento Search Showing All Products

If the search filter is not working as you need, then here is the solution :
-> Replace the catalogsearch folder under "app/design/frontend/default/your-theme/template" with "app/design/frontend/base/template/catalogsearch/".
-> Replace the catalogsearch.xml file under the "app/design/frontend/default/your-theme/layout/" with "app/design/frontend/base/layout/catalogsearch.xml".
-> Clear the cache.