Follow these instructions to specify a search criterion in find and replace operations and in search filters.
Click the radio button for the type of pattern matching you want to use.
In the combo box:
Select the pattern for the text you want to match. The drop-down lists matching patterns from previous searches.
Enter a new matching pattern by typing in the combo box. You can enter plain character strings, Posix regular expressions,
or wildcard patterns allowed in LIKE statements by Visual Basic for Applications (VBA). For regular expressions and wildcard
patterns, click the button next to the drop-down to display a pop-up menu of elements you can insert in the pattern. Click an element to insert
it. The matching pattern is saved when you execute the search.