Narrow with
⌘K and F first. Only type into the search box when you still don’t know where the document lives. Two keystrokes cut the library to a handful of rows; searching across everything is the slower, noisier path.
The two combine, so the fastest route to an awkward document is usually to filter to the client with ⌘K, then search inside what’s left.
⌘K: you know the client
This is the shortcut to learn first. It is how you should start almost every search.
1
Press ⌘K (Ctrl+K)
The menu opens over the list.
2
Type a client name or client ID
Matching client groups appear at the top, each with a document count.
3
Press Enter
The top result is applied as a filter and the menu closes. The list is now
just that client.

F: you know the attributes
Once you are on the right client (or when the client is not what you are filtering by), press F to narrow by attribute. Works anywhere in the list, as long as you are not typing in a field.

⌘K can drill into these same filters from its Filters list, so once the shortcut is muscle memory you can stay there for everything.

⌘F is left alone on purpose, so your browser’s find-on-page still works.The search box: you know none of that
Use the search box for the generalized case: you can’t name the client, you don’t know which attributes were set, you just know roughly what you are after.
When attribute search isn’t enough
By default the search box only reads attributes: filenames, client, year, service line, type, and your custom fields. That is fast and precise, and it is the right default. When it comes back empty, the words you remember are not in those fields. Widen it from the cog inside the search box.
Both search far more than attributes do, so they are slower and return more noise. Reach for them after attribute search comes up short, not before, and turn them back off once you have found what you needed.
Share what you found
Your search, filters, sorting, and grouping all live in the page URL, so copying the address bar sends a teammate the exact view you are looking at. To link one document instead, use Share in its... actions menu. Save the searches you run weekly as a view.