The majority disagreed with the Senate's amendments to the bill, and so they were rejected from the House of Representatives.
This means that the bill will return to the Senate, where the senators will decide whether or not they are going to insist on their amendments or whether they'll accept the will of the House.
You can explore the amendments as they are listed on the Hansard or on the bill's homepage.
What does the bill do?
The bill strengthens the laws against tax avoidance for certain companies. For example, it introduces anti-avoidance measures to deal with multinational companies with an annual global income of more than $A1 billion that use schemes to avoid having to pay tax in Australia or at least reduce that tax to a minimum.
To learn more about the bill, see the bills digest.