如要透過廣泛比對拓展觸及範圍，可採用以下哪三項最佳做法？

To effectively expand reach with broad match, group ad groups by common themes. This ensures broad match keywords trigger relevant ads, improving ad relevance and Quality Score. Utilizing responsive search ads (RSAs) and AI-powered creatives allows Google's AI to test various ad combinations, optimizing for performance and relevance across a wider range of queries that broad match might capture. For brand campaigns, combining broad match with brand restrictions helps capture variations of brand searches while maintaining brand safety and controlling costs. Incorrect options: Using manual bidding with broad match to maximize reach is not a best practice; automated bidding strategies are generally more effective for broad match due to its dynamic nature. Adding broad match keywords to ad groups already containing exact match keywords for the same terms is redundant and can lead to internal competition without significant benefit.