When searching for pages to link add the possibility to qualify with the parent

Steps to reproduce:

• Edit a page on a wiki with a lot of pages with similar titles, e.g.
  • pages with titles that have the same prefix (e.g. "Sandbox-")
  • pages with titles that contain the same keyword(s) (e.g. I tested with >10  pages named "Sandbox Test Page 1")
• Click on "Link" and search for "test" or "Sandbox Test Page 1" under Page with the suggest.

Result:

• The drop down displays only a few results without pagination or scrolling, it's hard to reach a page that is not among the top results (I cannot use the parent to narrow down the results from a space like "Sandbox11" or I need to know the exact title)
• When there are many pages inside the same space it's hard to use the tree as a workaround to select the page.

Expected results:

• Add the possibility to qualify better the search using the parent.