The phrase "a major help for" is correct and usable in written English.
It can be used when describing something that provides significant assistance or support in a particular context.
Example: "The new software update has been a major help for improving our team's productivity."
Alternatives: "a great aid for" or "a significant support for".
His victory was seen as a major help for the president, whose policies have been slow to improve the economy.
"This is definitely help for the economy and it is a major help for borrowers," said James E. Glassman, senior United States economist at J. P. Morgan.
It's a major help for those times when you want to educate yourself about, say, Syria but don't want to toggle between the story and a few reference tabs.
They're not that expensive for a business — around $200 for the cheapest model online — and they're a major help for parents.
This new technology has been a major help to those of us searching for the types of records that you just won't find in your average store.
The Paris talks have left open the possibility of major help for adaptation, such as sea walls, new types of crops and relocated facilities, as well as a 1.5C, rather than 2C limit on warming.
The results suggest that second growth forests along with halting deforestation can provide major help for meeting climate goals.
Because this strategy can be of major help for HIV vaccination, we proposed to include HIV patients in parallel to healthy subjects, for safety and immunogenicity of this new method of vaccination.
In other words, TheFamily should be a major operational help for these new startups.
He vowed not to support any major economic help for the North until there was a breakthrough in dismantling its nuclear facilities.
The project has only a few more days left on Kickstarter, and the brave crew needs major monetary help for transportation, insurance and all the not-so magical parts of building a boat for forty people.
