Supporting complex Boolean queries is relatively expensive, and their backend likely isn’t optimized for it because few users would use them. For Slack, they d

Supporting complex Boolean queries is relatively expensive, and their backend likely isn’t optimized for it because few users would use them. For Slack, they do support some Boolean queries. Reading https://slack.com/help/articles/202528808-Search-in-Slack https://slack.com/help/articles/202528808-Search-in-Slack, we have: - marketing report is ‘marketing and report’ (especially with >2 words, this may be a fuzzy search) - marketing -report is ‘marketing and not report’