How to locate lost AirPods 4 when 'Location is no longer found' in Find My app?

I went snowboarding about in January and after snowboarding I used my AirPods in the car. so I know I brought them home. but I can't seem to find them since I got back, the last time I saw them was January I believe they are AirPods 4 . the location is no longer found on my AirPods in the find my app. Please help I miss them

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