This really depends on what sort of asset data is getting returned by those keywords, and whether you’re planning on doing something different if both X and Y are true, instead of just one or the other.
For your use case, AND/OR is the same as OR, if the subsequent code path is the same.
If you’re using metadata or something that returns a string (or empty string), then you could try one of the suggestions in If asset_metadata OR asset_metadata exists