When I search for "pdu", entered without the quotes, Evernote reports 18 notes found. When I look at each of the 18 notes, I see the "pdu" text in 16 of the 18 notes. The other 2 notes do not contain "pdu". Find within note confirms that the text is not in these two notes.
When I search for "pdu ", entered with the quotes and with a space after the u, Evernote reports 15 notes found.
The 2 notes that do not contain "pdu" were included in the 15 notes
2 of the 3 notes that were included in the first search results, but not in these results, DO contain "pdu"
The 3rd note that was included in the first search results, but not in these results, DOES NOT contain "pdu"
I understand that quotes can be used to find an exact text string, for example "one two three". I had hoped that meant that they could be used to find "pdu", but not find "pdus". However it doesn't work that way. When I search for "pdu ", Evernote finds and highlights "pdu", even though there is not a space after the search target.
Evernote 10.25.6, 4 notebooks, 11,084 notes
MacBook Pro 2019 32GB
macOS Catalina 10.15.7