The phrase "manage to confirm" is correct and usable in written English.
It is typically used to express success in confirming or verifying something. Example: After days of trying, I finally managed to confirm the meeting time with the client.
But Dr. Afridi did not manage to confirm Bin Laden's presence in the house, American officials say.
The Senate did manage to confirm Elena Kagan to the Supreme Court, Air Force Lieutenant General James R. Clapper as the director of national intelligence, and General James Mattis as the head of U.S. Central Command.
However, the findings about internalizing disorders, such as depression and anxiety, are somewhat contradictory with some studies indicating a significant relationship between these disorders and smoking [ 5, 23- 25], while others did not manage to confirm a significant association [ 26- 29].
To his horror, he and his team managed to confirm only six of them.
The Guardian managed to confirm that a UK mobile number on Uzzaman's form belongs to a family member.
Mr. Hasan said he had managed to confirm Monday that Mr. Shahzad was being held by the ISI.
I managed to confirm that at least one did indeed work for adidas, as he had written on his LinkedIn profile about his nomination.
At a time of gloom at the Stadium of Light, Pickford has managed to confirm he has a very bright future.
The Guardian managed to confirm that one of the mobile numbers contained in the documents, belonged to a relation of one of the British fighters, lending credibility to claims that the hoard is genuine.
In the last few years Finnish scientists have finally managed to confirm that the Northern Lights do cause human-like whispers, cat-like hissing and clapping sounds in lower parts of the atmosphere, which are detectable by human hearing.
Since 2000, Dr. Park's office has handled more than 1,700 border-crossing cases, and officials here have managed to confirm the identities of about 1,050 of the remains.
