If you are a motivated and knowledgeable student, then of course I would love to supervise you! Sadly, there is always limited funding (and time), so I cannot accept everybody. So I list a few options how you could find other positions or supervisors.
The advice provided below could, partially, be specific to PhD positions, but also gives advice that can be used for finding post-doc positions or "just" ANU research projects (that ANU undergraduate students need on a regular basis).
If you are open to make a PhD (or post-doc) in AI Planning anywhere in the world, consider subscribing to the mailing lists planning-list~AT~googlegroups.com and icaps-conference~AT~googlegroups.com. Just search for them on google groups to subscribe. Every two(ish) weeks there's an announcement for PhD (and post-doc) positions.
PhD announcements by friends and colleagues:
(Sorted alphabetically by supervisor name.)
PhD and Post-doc Announcements of ANU Planning Group by our planning researchers. Note that not everybody seeking a PhD has an announcement online. So you could consider to reach out pro-actively. Also
PhD and post-doc annoucements in my school. This lists several announcement pages (like the one already linked right above) per group in the school of computing.
List of all available PhD supervisors. This convenient list lists all available supervisors, so working through that might be worthwhile. Keep in mind that webpages are usually always outdated...
My colleague Assoc. Prof. Charles Gretton has a post-doc position to offer.
The following lists clusters and groups, collections of ANU researchers working on related topics.
If you are looking for a research project, don't forget that you could also take part in a TechLauncher. According to my personal understanding, these are not research projects, but software projects, where you will have to implement, in a team with several peers, a larger software project that somebody else proposed. This might be from the industry or academia, either way it's a piece of software that somebody is genuinely interested in! I think only about half the time is invested in producing the software, whereas the remaining time is invested into reporting and quality assurance. But don't trust my words (that's literally just my personal understanding based on a few conversations I had!), instead check out the webpage by yourself! (Anyway, I think that's a great opportunity that you should consider! I'd certainly do it if I were still a student...)
Here you find lists of research projects of the college of Engineering, Computing & Cybernetics