About Query Suggestions for Scarce Results in .NET Search Interfaces
Coveo .NET Front-ENd 12.0.404+ (October 2013)
In out-of-the-box Coveo .NET search interfaces, the query suggestions appear by default when five or less results are returned and when at least one of the suggestion types described below is found.
Notes: Your Coveo administrator can customize the scarce results query suggestion feature for .NET search interfaces (see Configuring Query Suggestions for Scarce Results in a .NET Search Interface).
Query Suggestion Types
Did You Mean suggestion
When you misspell a keyword that is present in indexed documents, the Did you mean feature proposes the correctly spelled term as a search alternative (see How Are Misspelled Words Handled?). The query suggestion appears below to show the number of results that will be returned with this alternate query and optionally, a few of these results.
Example: The user misspelled the word relevant by typing relavant in the search box.
Misspelled keyword Did you mean recommendation Query suggestions indicating the number of results that will be returned with this query and optionally, the two first of these results.
Note: The Did You Mean suggestion type appears only when you clear the Automatically use corrected query suggestions (did you mean) option in your search interface preferences (see Modifying .NET Search Interface Preferences).
Fewer keywords suggestion
When your query contains two or more keywords, the query suggestion feature can propose one or more useful alternate queries by trying to remove each keyword to see if more results are returned. By default, the feature tries up to five (5) alternate queries.
Example: The following five keyword query returns no results. The feature automatically detected that eliminating the policy or collection keyword respectively returns 13 and 6 results.
No quotes suggestion
When your query includes a phrase search, an expression enclosed in double-quotes (see Searching a Phrase), the query suggestion feature tries removing the quotes to see if this yields to more results.
Example: The following phrase search returns no results, but the same non consecutive keywords return 57 results.
Fewer filters suggestion
When one or more facet selections are active for your query, the query suggestion feature can propose one or more alternative queries returning more results by removing some of the facet selections. By default, the feature tries up to five (5) alternate queries.