Hints appear as popup explanatory text when the mouse pointer pauses above a search field.
For a full description of search functionality, see Searching for Information.
1. Click the Preferences link in the upper-right corner of a the page. This will open the Preferences page.
2. Scroll down to the Application Behavior section of the page.
3. Check or uncheck the Search Hints checkbox to turn on (enabled) or turn off (disabled) search hints.