When I search for the Hebrew word אֶחָד I get lots of hits:

When I limit this to feminine forms I get no hits:

Two issues:
- Other Bible search software which uses this same database on this same text shows 977 occurrences of this word, not 701. Why is there a discrepancy? The Logos search appears to be missing some hits.
- Why does the search for feminine forms return nothing? There are definitely feminine forms of this word in the text.
Thanks in advance for help in working through this issue.