This is a constantly updating list of Asia-related higher degree theses submitted at the University of Melbourne:
http://www.lib.unimelb.edu.au/collections/asian/asian-theses.html
Theses can be requested and read in the Cultural Collections Reading Room on the third floor of the Baillieu library.
UM Catalogue Use the thesis search option. This should retrieve records of UM masters by research and doctoral theses from the catalogue.
Research collections (Mineva Access). Higher degree theses, digitised, 2007 onwards, and some pre 2007.
TROVE - Theses held in Australian libraries. Go to advanced search, drop the format menu to "thesis", and enter key words. On the results page, you can limit the results to "online" (full text).