The phrase "a large stash of" is correct and usable in written English.
It can be used when referring to a significant quantity of something that is stored or hidden, often implying secrecy or abundance.
Example: "The detective discovered a large stash of evidence hidden in the suspect's basement."
Alternatives: "a big collection of" or "a substantial amount of".
Even after these donations the Hollanders retain a large stash of Steichens.
DaMarion's father, a former Carroll Academy student, spent part of the past year in jail after being caught by the police with a large stash of marijuana.
On Thursday, just two days after the Bristol sale, Mullocks in Shropshire sold a large stash of Hitler photos and paperwork for thousands of pounds.
He was arrested, and a large stash of the ransom money (the amount is disputed but was more than $11,000) was found in his house.
My mother immediately produced a large stash of nicotine-juiced fake, plastic cigarettes from her handbag and passed them out to the people in her row.
Never one to follow orders, he makes a quick recce of the building and discovers a large stash of gas masks.
There were at least three binders of English-language documents, one marked C.I.A. and the other two marked MI-6, among a larger stash of documents in Arabic.
The documents included at least three binders of English-language papers, one marked C.I.A. and the other two marked MI-6, among a larger stash of files in Arabic.
"The Sleep-Over Artist" truly hits its stride in the extended comical story "Vas Is Dat?" Alex, who's floating through his fuzzy postcollegiate years and beginning to hone his skill at crashing in girlfriends' apartments (hence the title), hooks up with his mercenary cousin Karl in a scheme to manage their Alzheimer's-afflicted Aunti B's surprisingly large stash of savings.
A guy from the city of Coventry in England tried to blame the large stash of child porn in his possession on his own children, who, at the time, would have been under the age of six.
His obsession was fueled, in part, by his large stash of counterfeit DVDs of "The West Wing".
