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 pages

> Enemy Unknown
    Downloads / Operation Arrowhead / Scenario / Co-op missions   ||  Tags: Aliens, Ufo

Found in forums

> Aliens added by BIS
    FORUMS / Arma 3 / General Discussion   ||  Tags: Aliens
> Alien Life - Mission Series
    FORUMS / Operation Arrowhead / Missions WIP   ||  Tags: Alien, Aliens, Alienz