I'm using these two resources:
- Eusebius of Caesarea. Ecclesiastical History, Books 6–10. Translated by Roy J. Deferrari. Vol. 29. The Fathers of the Church. Washington, DC: The Catholic University of America Press, 1955.
- Eusebius. The Ecclesiastical History and 2: English Translation. Edited by T. E. Page, E. Capps, W. H. D. Rouse, L. A. Post, and E. H. Warmington. Translated by Kirsopp Lake and J. E. L. Oulton. Vol. 1. The Loeb Classical Library. London; New York; Cambridge, MA: William Heinemann; G. P. Putnam’s Sons; Harvard University Press, 1926–1932.
The second contains paragraph numbers while the first does not.

When searching for occurrences of the text, I would expect both of these to be picked up. However, the results of the search are:

Notice this does not include the first resource listed initially with evidence that it does, in fact, contain the text. It appears that the Search does not recognize that Book 6 Chapter 43 necessarily includes the paragraphs within. I find it disconcerting to not get both the initial resources in the search results.