Using Special Characters

When using search filters, the following special characters can be used to modify your search.

Character	Description
% (percent sign)	Matches any string of alphanumeric characters. For example, searching for “test%” would return matches for “test”, “tests”, and “testing”.
_ (underscore)	Matches a single alphanumeric character. For example, searching for “test_” would return matches for “test” and “tests” but not “testing”.
[ ] (square brackets)	Matches any alphanumeric character contained within the brackets. For example, typing [abc] will match a, b, or c.

If you want to search for text that contains these characters (and not use them to modify your search), then simply encase them in square brackets ([]). For example, to search for a study description that contains an underscore, enter [_] in the search filter.