The phrase "cannot help with" is correct and usable in written English.
You can use it when you are unable to assist or provide assistance with a certain task or problem. Example: I'm sorry, I cannot help with the math assignment as it is beyond my understanding.
That is something the latest asset sale cannot help with.
To complicate matters, many refugee parents cannot help with homework or understand report cards.
They said, 'Wow, we cannot help with that' and gave us toothpaste".
But the organization cannot help with eviction, other than to refer the owner to appropriate government agencies.
Styling, though, cannot help with the task at hand: convincing wealthy and entitled clients that the market can no longer sustain the exorbitant and overinflated asking prices they are demanding.
That is not to suggest that tax policy cannot help with long-term growth — virtually every academic study says it absolutely can — but that tax policy is a lousy way to stimulate the economy on a temporary basis.
Koestenbaum acknowledges some pleasure at this grim Passion, but cannot help identifying with the accused, even with a self-declared homophobe such as US senator Larry Craig, arraigned for soliciting sex from an undercover cop at Minneapolis airport.
As a journalist, I cannot help imagining with excitement a new era with a face-off between Hedi Slimane at YSL and Raf Simons at Dior — a magnificent battle of style and wills to echo the Armani/Versace, Gucci/Prada or even Chanel/Schiaparelli face-offs of earlier years.
With so many urgent cases, he cannot help patients with chronic conditions.
Even if they cannot help you with your cancer treatment costs, they might be able to help provide food, medicine, care at home, or help with transportation.
(Participant G, M/51) The participants believed that they needed to manage their healthcare on their own to lead a harmonious life with fatigue, as fatigue is a disease that they cannot help living with.
