Full text search (FTS) is a more efficient method for searching words and phrases within databases compared to using wildcards, which can cause performance drains. Starting with Couchbase 4.5, FTS is available as a developer preview feature. This tutorial demonstrates how to use full text search in a Node.js application using the Node.js SDK for Couchbase Server. The example project involves creating a resume parsing application that uses FTS to scan for relevant keywords or phrases and evaluate candidate qualifications based on search scoring.