"multiple failed attempts" is a correct and usable phrase in written English.
You can use it when referring to a situation in which a person or group has made repeated attempts to do something, but all the attempts have failed. For example, "After multiple failed attempts at solving the equation, we finally realized it was unsolvable."
Many couples have benefited from this treatment; however, many have also been left frustrated following multiple failed attempts.
This tiny box was easy to miss, so multiple failed attempts to log in would add up, and the username trying to log in would be temporarily locked out.
In the future, severe alcoholics with multiple failed attempts at intensive medical therapies and in-patient rehabilitation may have a different treatment option for their addiction — deep brain stimulation (DBS) — as recently reported in a review article by Stanford researchers in Neurosurgical Focus.
It seems Facebook has finally found way to challenge Snapchat after multiple failed attempts since it turned down the social giant's first acquisition offer in 2012.
After multiple failed attempts to restart the show, the booing began.
That specter has haunted me ever since, second only to the ghosts of multiple failed attempts at climbing rope in gym class.
These are among the outcomes currently being documented with research in The Attachment and Trauma Center of Nebraska with severely disturbed children, many of whom previously experienced multiple failed adoption attempts.
After multiple failed contact attempts, ESA declared the mission lost.
Available information include device's status (e.g., OS version, patch level), device behavior anomalies (e.g., scanning), suspicious user activities (e.g., illegal accesses to sensitive data, multiple failed login attempts), and credential anomalies (e.g., unauthorized accesses).
A decade later, after multiple failed reform attempts, the U.S. entered Iraq and Afghanistan with a smaller Cold War force.
In 1930, after multiple failed election attempts, and serving as a regional leader in the American Legion, he became a utility commissioner under the administration of Indiana Governor Paul V. McNutt.
