Display relevant tags in the list after inputting a tag

After I have input the first tag, instead of displaying a list of all tags, Memex only displays relevant tags which have been associated with the first tag. For example:

Item 1: city, food
Item 2: food, game
Item 3: hobby, entertainment, fun

When I input the first tag “food”, a list containing “city” and “game” only instead of displaying a full list of all tags will be displayed. This principle is applied similarly when I further input the second tag. This feature can significantly help to narrow down the search by simply choosing from relevant tags. Thank you.