整理lambda表达式

Question

以下代码为我提供了我需要的结果，但有人可以建议如何更好地编写它吗？我确信这是一种更有效的方法。 感谢。

private bool IsLocation(Guid _vID, Guid OrganisationId)
{
    var vehicle = _vehilceRepository.GetSingle(c => c.vehicleId == _vID);
    var clients = _clientRepository.GetList(c => c.OrganisationID == OrganisationId);

    foreach (var client in clients)
    {
        var locations = _LocationRepository.GetList(c => c.ClientID == client.ClientID);
        if (locations.Count > 0)
        {
            foreach (var location in locations)
            {
                if (location.LocationId == vehicle.LocationID)
                {
                    return true;
                }
            }
        }
    }
    return false;
}