Searching using quotation marks returns unexpected results

### Expected
When searching in the app I would expect the same process to find an exact phrase to work in the iOS app as Electron

### Observed
When a search is entered in like this `"search phrase"` in iOS no results return. On Electron the desired results, containing only the exact `search phrase` show. To show any results for those words on iOS I have to remove the `" "` marks. If I add the quotes to the phrase I'm searching for within the note results are returned.

### Steps to reproduce
1. Open your app
2. Enter quotes around a search phrase

#### Without quotes

(Image link: https://blogmcblogghome.files.wordpress.com/2020/08/img_0046.png )

#### With quotes

(Image link: https://blogmcblogghome.files.wordpress.com/2020/08/img_0047.png )

Make|Model|iOS Version|App Version
-|-|-|-
iPad |7th gen|13.6 |4.22.1

User reported #3244187-zen . Information above is from my test reproducing the issue.

Start by reproducing the quoted-phrase search in the iOS app using the issue's steps, then compare its behavior with Electron. Done means quoted searches return results containing only the exact phrase, matching the expected Electron behavior, while unquoted searches continue to work.

Written by the indexing model from the issue text.