Acquia Search powered by SearchStax provides several basic relevance features, including managing stop words and adjusting the relevance of search results:

• Stop words are common words that add no value to search queries. You can omit them to improve search accuracy.
• Administrators can adjust the weights of different fields to optimize the relevance of search results. For example, if a match occurs in the title field, administrators can decide whether to give that more or less weight compared to other fields such as description.