Back in the day, there was this exchange regarding counts in a search.
lemma:נְאֻם BEFORE 4 CHARS lemma:יהוה
Proximity searches will always return counts for both words in the search.
You can use a phrase search to avoid this: "lemma:נְאֻם lemma:יהוה"
I cannot get the phrase search to work. The proximity search gives me 178 results in 89 verses. The phrase search gives me zero.