For an introduction to the Scholarly Electronic Databases, see Trek 6 of InfoTrekk . At Curtin's TL Robertson Library, most printed law reports are held in the Government Publications and Legal Reference Collection on Level 3. If your library does not have law reports, try the library of universities with a law school or your State Library. It will save time if you at least know the year of the case and whether it is Australian or English etc. Only cases of some legal importance are reported.
Most court cases go unreported, even if they are mentioned in the media.
Some of the sources above, such as Butterworths Online list unreported cases as 'Unreported Judgements'. Butterworths Online has a useful Australian legal dictionary and a legal news service. The Law Report on the Web. Experts are interviewed about current legal issues and cases. AustLII has a link called 'World Law' which links to international courts, such as the International Court of Justice, European courts and courts in many countries.