Recently evaluated the semantic search capability of Sentence Transformers. Their Multi-QA models have been trained on 215M question-answer pairs from various sources and domains, including StackExchange, Yahoo Answers, Google & Bing search queries and many more. I have used multi-qa-mpnet-base-cos-v1. The example code is available at https://huggingface.co/sentence-transformers/multi-qa-mpnet-base-cos-v1. In the given sample, in addition to actual docs, I