If by a "search engine" you mean a tool to index and retrieve documents (essentially what the terms mean in the traditional Information Retrieval, e.g Lucene, S

If by a "search engine" you mean a tool to index and retrieve documents (essentially what the terms mean in the traditional Information Retrieval, e.g Lucene, SOLR, Elastic) then this is a pretty good on the subject that taught me a lot: https://www.amazon.com/Managing-Gigabytes-Compressing-Multimedia-Information/dp/1558605703 https://www.amazon.com/Managing-Gigabytes-Compressing-Multim...