@EB Natively, not really. Basically you have to put ALL the criteria in whatever saved search you need to output, you can't use another one as the input or criteria for a different one. Marty Zigman had some article a while back on how to maybe do this, but I didn't read/explore it (
https://blog.prolecto.com/2020/04/18/join-multiple-netsuite-saved-searches-to-build-data-universe/). The other alternative is to explore the new reporting feature SuiteAnalytics Workbook. No single-join limitation, and maybe can kinda do what you're asking with different datasets, but there are some other features (like being able to export summaries/pivots) that are still not really ready for prime-time IMHO.