Controlling search engine guidance

Depending on the results of a search query, the search engine may offer guidance for a follow-on query. For example, if a query generates lots of hits, the search engine may suggest super phrases (queries with more terms) to narrow the search. Alternatively, if a query doesn't generate any hits, the search engine may suggest sub-phrases to widen the search. The suggested phrases appear before the actual hits, if there are any. (See Phrasal Query Suggestions in the Search Library for a discussion of search guidance.)

A new option has been added to the search engine to control the number of suggested super and sub-phrases: phraseN sets the maximum number of suggestions to N. If N is zero, no suggestions are shown. For more details and an example, please see the Search Guide.