You can search from "Search Window" on the top left.
1. Default search
By default, the search function will search for keywords that partially match your search terms.
2. Exact search
To search for exactly your search terms, you can place double quotes around your search term.
3. Advanced search
The advanced search filters will affect the actions and posts search results.
3-1. Advanced: custom time range
Get the results between a start and end date.
3-2. Advanced: sort by date
Order the search results by date, with the most recent results on top.
3-3. Advanced: exclude comments from search
With this option enabled, the comments are filtered from the search results.