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

> Problem exporting in Blender.
    FORUMS / Editing / Addon editing / Arma 3   ||  Tags: Export, Import, Model., Oxygen 2
> High quality maps
    FORUMS / Arma 3 / General Discussion   ||  Tags: Export, Map