I had some expenses in Australia . Can I claim them ?

The expenses you can claim are mostly related to your general income, but there are a few (such as donations) that aren't related to your income. Deductions reduce your taxable income. If the expense was incurred for both work and private purposes, you only claim a deduction for the work-related portion. You can claim back on the following:

• Course fees
• Deductions for  computers, internet, stationery, books and other items you use for work
• Student union fees
• Repairs to educational equipment such as computers
• Clothing, laundry and dry-cleaning expenses
• Car expenses
• Cost of managing tax affairs – deduction for expenses to manage your tax affairs, such as lodging with a registered tax agent. 

You must keep records, such as receipts, for any deductions you claim. You need to keep these records for at least five years from the date you lodge your tax return as ATO may ask you to show these records.