Query and Result Suggestions
Query Suggestions (QS) and Results Suggestions are two Coveo for Sitecore features that can significantly improve user experience.
The Coveo ML Query Suggestions feature, which includes Type-Ahead, provides users with smart and relevant query completion suggestions based on usage analytics successful queries (see Query Suggestions).
You can combine Coveo ML Query Suggestions and Facet Value Suggestions. This allows users to quickly filter their search results based on a facet value (see Add Facet Value Suggestions to Query Suggestions).
The Coveo Results Suggestions feature enables you to display actual query results to your users as they type, immediately underneath the searchbox. This means that each change a user makes in the search box triggers a new query to the Coveo Search API (see Result Suggestions).