Boolean Retrieval: AND, OR, and NOT in Search
Learn how Boolean search uses AND, OR, and NOT to combine result sets, where exact control helps, and why website search still needs ranking.
Yuvraj
For agents: Read llms.txt for the complete documentation and public content index. Request this page as Markdown.
Skip to main content
Learn how Boolean search uses AND, OR, and NOT to combine result sets, where exact control helps, and why website search still needs ranking.
Yuvraj
Learn why long pages get more chances to match a search query, how BM25 adjusts for relative document length, and why shorter is not automatically better.
Yuvraj
Learn how crawl scope, sitemaps, rendering, URL identity, and recrawl freshness shape the pages a site-search ranker can choose from.
Yuvraj
Keyword search uses literal evidence. Embedding-based semantic search bridges vocabulary gaps. Learn where each fails and when hybrid retrieval earns its added complexity.
Yuvraj
Hybrid search combines keyword and vector retrieval. Learn how fusion, candidate windows, filters, and reranking turn two result lists into one.
Yuvraj
Learn how search engines split and normalize page text and queries into searchable terms, and why those choices can decide which pages reach ranking.
Yuvraj