You have to put the abbreviation of the Bible translation you want to search in into angle brackets (less than, greater than signs) in front of the word you search for. Keep in mind that there might be a slight difference in the verse numbers especially in the book of Psalms where there is often 1 verse difference in numbering. You can combine this search with the specification of verse distance.
E.g.:
soul AND <KJV>spirit
The translation selected contains the word “soul”, but the the same verse in the English KJV (King James Version) contains the word “spirit”.
mind <VERS 1>AND <KJV>heart
The translation selected contains the word “mind” but within 1 verse distance the English KJV (King James Version) uses the word “heart”.