'substantive collections' is correct and usable in written English.
This phrase can be used to refer to a collection of documents, records, materials, or data, especially those that have been organized or arranged in a meaningful way. For example, "His research paper was based on an extensive substantive collection of original sources."
Liverpool central defender Dejan Lovren, 25, posted a picture of his impressive and substantive Kinder Egg toy collection on Instagram. .
This is the first time substantive portions of the collection have gone on tour.
"You can put in place substantive limitations on the collection and use of this data, which is always a good idea," Mr. Rotenberg said.
Jaffe writes in his report that the draft is "an extremely important collection, representing, in effect, the genesis of the novel, with approximately 92 of the 145 pages in this collection bearing substantive revisions by the author".
CX made substantive contributions to data collection, conducted the experiments, and commented on the manuscript.
VK proposed the ideas and posed a number of substantive questions related to data collection and analysis.
While the within-group change in SF-12 MCS in our controlled trial was comparable with that observed in the previous study (3.5 vs 3.8), this should be interpreted cautiously due to substantive methodological differences in data collection and attrition.
From the perspective of the principle that qualitative grounded theory emerges from the language of the subjects reporting their own first-hand experiences, the open-ended interview was a rich and substantive component of the primary data collection.
All authors meet the following criteria [recommended by the ICMJE (http://www.icmje.org/ethical_1author.html)]: substantive contribution to conception, design, data collection, analysis and interpretation of data as well as drafting and revising the article significantly for relevant intellectual content.
Treatment follow-up studies require sampling and data collection over many years before substantive analysis can be performed.
