PC game osts:KhinsiderDownloader

Switch dumping: nxdumptool + tinfoil

Wii U ripping: Wii U USB helper or dumpling

PS3 backups: nopaystatoon

Pre-patched rom hacks: CDRomance

Other backups or manuals and scans: Internet archive or vimm’s lair

Is advanced searching any better? I wouldn’t know now because searx but when I used it before it helped to keep the results focused.

The issue is that it’s more likely to be paywalled like the shit red hat/IBM is pulling with their repo code.