It sounds like your campaign might be facing low search volume for your selected keywords, or they might be too specific. I’d recommend checking if the keywords are getting any impressions at all. If not, try broadening your match types, adding more variations, or adjusting the targeting. You could also test different bidding strategies, or increase your budget to see if that helps. Also, ensure your ad is relevant to the keywords and landing page to improve the Quality Score, which could lead to more clicks.