You can expect to find an app in GNOME Software if it is a GUI application (== has a .desktop file in /usr/share/applications/ that isn't NoDisplay and of Type=Application). For anything else (that likely includes phpMyAdmin) GNOME Software isn't the right tool and wasn't designed for.
Apps will also definitely show up if they have AppStream metainfo files of type desktop-application (so service-types are also excluded here, currently). Also it appears that on Ubuntu Snaps aren't filtered by type. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-software in Ubuntu. https://bugs.launchpad.net/bugs/1825766 Title: search results don't match apt search Status in gnome-software package in Ubuntu: New Bug description: searching for "guake" does not show the "guake" package, but if I search it via apt, I do see it available. ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: gnome-software 3.30.6-2ubuntu3 ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6 Uname: Linux 5.0.0-13-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun Apr 21 17:39:19 2019 InstallationDate: Installed on 2019-04-21 (0 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) InstalledPlugins: gnome-software-plugin-flatpak N/A gnome-software-plugin-snap 3.30.6-2ubuntu3 SourcePackage: gnome-software UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1825766/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp