From Custom Solutions of Maryland:
Open the text file (or paste the text to be mined into the window) and type up to 28 strings (case-sensitive) to be searched. Data Mining will count the number of "hits" for each string. Search strings are saved automatically (and loaded automatically during the next launch). An Ad Hoc search string capability is provided (this case-sensitive string is not stored between sessions). A Find/Find Again search string (case-insensitive) is also provided and the text is scrolled automatically to that occurrence and highlighted.