When Keywords Aren’t Enough: Building Smarter Search with Elasticsearch

Author Introduction I’m Gaurav Bhanudas Navghare , currently a computer science student who spends a lot of time building small systems just to understand how they work under the hood. Most of my interest lies in learning new things day by day and getting more knowledge about new things especially the parts that quietly power everyday experiences, like search bars. I recently won my first hackathon so today I am happy . This project started with something very simple. I was building a small product search feature for a college assignment. I assumed search was “solved.” You type words, the system matches them, and that’s it. But once I began testing real queries, I noticed something strange. The system wasn’t wrong . It was just… shallow. It matched words, not meaning. That small realization pulled me into the world of semantic search and eventually Elasticsearch’s vector capabilities. Abstract Keyword search often fails when users phrase queries differently from stored documents. I bui