e.g. If I type "area soft eng", if I have a tag "Area: Software Engineering" it should come up

It would be useful to e.g. exclude a tag while filtering/searching. For example I want to see all #cat images but want to exclude all images with the tag #cute and #meme. In that case I would write into the filter field: #cat -#cute -#meme

Make searching for bookmarks easier by searching any part of the bookmark, such as URL, name and tags. Search in its current form is much too restrictive.

Let the user choose the operator, for example:

#tag1 AND #tag2

Or

#tag1 OR #tag2

After searching there is no possibility to get to the collection of the discovered item. As the Number of my collections and nested collections are growing it is getting difficult to locate the folder of the discovered item manually. For Firefox Bookmarks there is a simmilar Plugin. It is Called "Find parent Folder"

Allow also search in multiple folders at once by tags, names etc.

Custom search where you can specify name, date, popularity, tags, notes, type (image, link, etc) category, colors etc... all in one place to really narrow down precisely what you want

By colors I mean being able to chose colors for different posts to narrow down with that.

Maybe like Papaly bookmarking software also have columns for bookmarks in a folder

I have over 20k bookmarks, and they are all recipes. If I want to find tomato chutney, I don't just get tomato chutney. I get everything with tomato and chutney, tomato or chutney, and a bunch of other non tomato/chutney links. There seems to be no way to narrow that search down. It renders Raindrop almost useless as I can't ever find anything and it's actually easier for me to search google than Raindrop. Which sort of makes this whole thing pointless.