Several comma-separated tags will be considered as logical AND between them. You can also use semicolon for logical OR. AND has a priority over OR and you cannot use parentheses for logical grouping. Asterisk (*) within a tag will be regarded as a mask for "any string".

Found in forums

> [Utility] - FOV Changer
    FORUMS / Arma 3 / Addons and Mods: Complete / Other   ||  Tags: Fov, Utility
> Setting FOV/Zoom via script or mod
    FORUMS / Editing / Scripting / Arma 3   ||  Tags: Fov, Zoom