Searching for a Greek word translated in a particular way

I am trying to find instances of a Greek word translated a particular way in an English Bible within a certain number of words from a second word. For example, I am trying to find where λέγω is translated "tell" in the NASB within 2 words of ὑμῖν.

1. The first step was to make sure that I could find all instances of λέγω is translated "tell" in the NASB.

Both of the following searches seem to accomplish what I want.

λέγω INTERSECTS tell

έγω WITHIN tell

As far as I can see they both return the same results.

2. Where I run into problems is when I try to combine this with another search term. Here is what I tried:

(λέγω INTERSECTS tell) WITHIN 2 WORDS ὑμῖν

This produces no search results.

Can someone tell me why this second search does not work? Is there a better search syntax to accomplish what I want? I have no trouble if I search for λέγω WITHIN 2 WORDS ὑμῖν, but this does not allow me to specify the way the word is translated.

I realize that proximity searches are dicey on Greek/Hebrew words in a reverse interlinear. But I cannot search for the translation of a word if I search on a Greek New Testament.

Thanks for any suggestions.