"expanded collection" is a correct and usable phrase in written English.
You can use it to describe an increase in items in a collection or group. For example, "The library acquired an expanded collection of historical artifacts."
From 2001-2002, NHANES collected one 24-hour recall, but in 2003-2004 expanded collection to one 24-hour recall in the Mobile Examination Center and an additional recall 3 10 days later.
New York State's expanded collection of DNA evidence from felons was credited yesterday with helping to catch a career criminal in the brazen rape of a television producer in Midtown Manhattan two years ago.
"Don't they know the table comes first?" Adam Gopnik borrows the phrase as the title of his new book, an expanded collection of his food writing for the New Yorker over the past 25 years.
Lions Gate's expanded collection of more than 8,000 titles -- including fitness videos, children's programs, classic films like "It's a Wonderful Life" and action hits like "Terminator 2: Judgment Day" -- should prove popular with cable television channels and retail customers at chains like Best Buy and Wal-Mart, Mr. Feltheimer said.
London, England John Playford, (born 1623, Norwich, Norfolk, Eng. died November 1686?, London), English music publisher and bookseller whose popular and frequently expanded collection of music and dance steps remains the principal source of knowledge of English country dance steps and melodies.
"Lily's Castle" features Ogden's paintings and clothing designs as well as an expanded collection of appliquéd and patchwork elephants, butterflies and other animals, some plush-toy cuddly, others the size of a rocking horse, and all of them gathered for afternoon tea.
I contented myself with the Monkees as a thoroughly '60s entity, which was easy to do as more vintage outtakes and deluxe expanded collections continued to surface.
The agency also seeks, in its words, to "expand collection services from existing providers".
Hagen's entire assortment of team-issued T-shirts, an expanding collection, does not.
As a result, I have a nice menagerie of roses, and an expanding collection of lungwort (Pulmonaria).
The expanding collection of panels would produce ever more power, at a rate that would increase exponentially.
