Cooperative Query Answering
Part of a larger principle, the Cooperative Principle where Conversational Partners work together to advance the conversation". In the case cooperative query answering, instead of a user trying to recover from query failure, the system tries understanding the user and gives them alternative suggestions which are similar to the original query. Something like a query recommendation. Once recommendations are given the user can try the recommendations or continue on with the query that they have. Essentially trying to make the search system more conversant.