I was running a simple basic search for references to Mt 5-7 in the Catechism of the Catholic Church ... stalled 3857.VerbumError.zip
Orthodox Bishop Hilarion Alfeyev: "To be a theologian means to have experience of a personal encounter with God through prayer and worship."
I suggest you re-index the book e.g. reindex LLS:CATCATHCHRCHITL and retry the search.
Dave===
Windows 10 & Android 8