So if one uses a visual filter for corresponding words, lemmas and roots, in Is 39, one helpfully will find repetitions of the noun dAbar, "word/thing," regardless of translation gloss in English translations, when a noun is selected.
But the filter does not mark the so-called denominative verb form, Piel dibber, in v. 8 if one of the related nouns, such as in the same verse, is selected first.
Interestingly, if one reverses the order and selects the gloss for the verb in v. 8, the filter DOES show all the related nouns.
In Gen 21 the same filter does show the same N dAbar and denominative vb dibber in Gn 21, but again only if the verb form is selected first. Again, when the noun is selected, the related V form(s) are not marked by the visual filter.
[BTW, the same filter DOES, however, pull up both related N and V for "storehouse" and "store up" in Is 39, AND regardless of search-selection order.]
Thoughts as to user error or glitch in the matrix?