The phrase "with no help" is correct and usable in written English.
You can use it to indicate a lack of aid or assistance. For example, "He was able to complete the task with no help from anyone."
She ate it with no help at all.
She hurt herself but flew home with no help.
"Darrelle was in a lot of man-to-man isolated coverage with no help," Mangini said.
Then she insisted on doing all the butchering, with no help from me.
Let it slowly creep over the stage, with no help, with no end in view".
He was thrown back out into this world with no help whatsoever.
I am single mum with no help and no time for myself.
There are increasing numbers of vulnerable older people living in silent misery with no help.
We stayed up until morning, with no help from unnatural stimulants, talking, laughing and having sex.
Automated telescopes that can find celestial objects with no help from humans are not new.
Some support was "exemplary" but others had been left with no help at all.
