"work more carefully" is correct and usable in written English.
You can use it whenever you are trying to encourage someone to do a task with increased attention to details. For example, "If you want to get a perfect result, you should work more carefully."
"I wish they would work more carefully," she said numbly.
The production team wrote on Facebook later: "We will improve and develop our work more carefully and are deeply sorry," the AP reported.
The studio drawings consist partly of preparatory designs for paintings Claude prepared his work more carefully than any previous landscape artist and partly of compositions created as ends in themselves.
Some companies are said to feel they ceded too much control to the outsourcing firms last time and now plan to manage the work more carefully, not least by parcelling business out to several firms.
The report, which also recommends an early warning system so the company can monitor work more carefully or even stop operations if seismic activity is felt in the future, will be sent to the Department for Energy and Climate Change and the British Geological Survey for approval before the company can resume operations at Preece Hall.
They are methodical and process-oriented… They typically have slower reaction times and work more carefully than other types.
Why? "Possibly because there were so many guys in the lineup capable of hitting a home run that pitchers just got more cautious and worked more carefully," he said.
John Pimm, the psychologist who directs the Buckinghamshire center, found in 2013 that he could strikingly raise recovery rates by having his therapists give some patients two or three extra sessions; and by extending call times for phone therapy, working more carefully at the critical junctures, when people begin, or end, therapy.
All that was very many years ago, and the apprentice is an old man himself now, his hands are arthritic and he must work even more carefully, deliberately.
In fact, many believers testify that Mercury-in-retrograde mix-ups teach them to back up their work, reflect more carefully and take things more slowly.
Versions of both of these ideas are worked out more carefully and extensively in some of Castañeda's key writings on action.
