Government officials from Australia, China and Malaysia are pledging to continue the search for Malaysia Airlines Flight 370, despite questions about who will pay and how to proceed.

"We will need to discuss with Malaysia and with China and with other parties who have an interest in this, how whatever costs there might be will be shared," Warren Truss, Australia's deputy prime minister, said.

And, Malaysia's transport minister says no matter what -- they promise to keep searching.

"This is an unprecedented case. And the fact that we've got all these experts together, underscores the point, that this may well change the landscape and how things are done in the future," he said. 

The jetliner with 239 people on board disappeared almost two months ago.  

The United States now says its sophisticated Bluefin-21 robotic sub can only be used for one more month.  

That's placing extra pressure on China, Australia and Malaysia to find funding for the next phase of the search.  

The Boeing 777 is believed to have gone down somewhere in the vast southern Indian Ocean.