The phrase "and failed to trace" is correct and usable in written English.
It can be used when discussing an inability to follow or track something, such as a source, a path, or a connection.
Example: "The detective investigated the case thoroughly but ultimately and failed to trace the suspect's whereabouts."
Alternatives: "and could not track" or "and was unable to follow".
As a result, the debate on the SUPPORT trial has been largely ad hoc, in that it identifies a loosely related and not necessarily comprehensive set of issues, and fails to trace them to a central ethical principle.
In the control arm among 221 629 men, three men opted out, 1632 had prevalent prostate cancer and HSCIC failed to trace 81, as above these figures are subject to change upon receipt of further information from the HSCIC.
U.S. prosecutors said the reports cited by Manafort failed to mention any specific grand jury matter, and that Manafort failed to trace any alleged leak as originating from government attorneys or law enforcement officials working on his case, as opposed to other possible sources, such as people familiar with his defense or other suspects.
"I just cannot believe that with all the high-tech gadgets and vessels that were deployed, they still failed to trace the aircraft.
BP disputed the findings, saying the study failed to trace oil to the ruptured well and that the rise in dolphin deaths had begun before the blowout. .
The company vigorously disputed NOAA's findings, saying the study failed to trace oil to the ruptured well and that the "unusual mortality event" (UME) began two months before the blowout.
However, the highly nonlinear system dynamics and strong coupling effects between loops make the widely used, control oriented model failed to trace the system states well, especially in transient situations.
Yesterday, there were embarrassing questions as to why investigators had failed to trace Natascha.
The coroner also noted that the police had failed to trace "the guy I was with last night", who the note requested should not be blamed.
The families had claimed that the men "had gone away a year before, maybe two years ago, and they hadn't heard from them".The official also said that Pakistani investigators had failed to trace the other nine attackers all of whom were killed by Indian security forces even though Mr Qasab had provided a list of their names.
