elasticsearch的搜索效果不如opensearch

请问为何使用elasticsearch，而不是opensearch，opensearch的效果好多了。一些知识库内容，经常搜索不到，希望可以适配

The issue does not identify any files, tests, or entry points. First clarify the current Elasticsearch integration, the expected OpenSearch compatibility, and reproducible cases where knowledge-base content is missing from search results. Done should include an agreed implementation scope and verification that those cases search successfully.

Written by the indexing model from the issue text.