"helped further" is correct and usable in written English.
You can use it to describe how something has been improved or extended. For example, "The new program helped further the research on climate change."
His fluency helped further his career.
The game helped further secure Tebow's legacy at Florida.
Ms. Dickson said the session helped further her understanding of addiction.
The success of the Americans helped further the reputation of American design.
The Reagan administration helped further in 1981 by restricting Japanese imports.
It was important, however, that Perry not suspect this — not until Perry, with his gift, had helped further Dick's ambitions.
It could be helped further along if Al Gore hops aboard the Obama bandwagon later in the week.
Other developers say interim uses have drawn crowds that have helped further define the neighborhoods around their development sites.
Trees could be helped further by returning wolves and other top predators to Britain, Monbiot says, because of the knock-on effects of such "keystone" species.
But FX renewed it for two additional seasons, concluding that "Damages" helped further its tradition of stark, stylized shows like "Nip/Tuck," "Rescue Me" and "The Shield".
By Amanda Petrusich January 16, 2018 O'Riordan, who died on Monday, helped further the then-iffy-seeming idea that a woman could be both beautiful and ferocious.
