The text discusses how to use Full Text Search (FTS) in Couchbase Server 4.5 and higher using the Go programming language. The author creates a new project with the necessary dependencies, sets up a full-text search index on the default bucket, defines an example data model for resumes, and develops a GoLang application to search for specific text within documents. The code demonstrates how to create a search query, execute it, and parse the results into JSON. The author also shows how to make adjustments to the search query to be more specific, such as searching within a particular field. The example is used to illustrate the efficiency of using FTS in Couchbase for searching documents.