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

> Mig21 OPFOR Pack
    Downloads / Arma 2 / Addons / Vehicle / Planes   ||  Tags: Mig, Mig21, Opfor

Found in forums

> Mig21 OPFOR Pack
    FORUMS / Operation Arrowhead / Addons and Mods: Complete / Vehicles   ||  Tags: Mig21, Opfor