When you start typing at the query box, every result is covered by the list of suggestions (which can have any length), and if you gave up typing a new term and tries to check your results again you will need to click in the back button (left arrow). If you try tapping in an empty space, the suggestions disappear but the results are still hidden.
The expected behavior is to show the results again if I click in an empty space below the list of suggestions, just like Google (in their case, the empty space is transparent = the suggestion tab doesn't use all space on the screen).