Search won't advance to other occurrences of search term

In most modern applications (eg broswers, office suite, etc.) a CTRL+F will bring up the search box. If you search for a term the first occurrence will appear. If you then hit ENTER the second occurrence will appear. Continue to hit ENTER and you get the third occurrence, fourth, etc.

In qpdfview if you CTRL+F you do indeed get the first occurrence of whatever it is you are searching for. But if you hit ENTER (or SPACEBAR) or anything else you do not automatically move to the second occurrence of what it is you're searching for.

You can also TAB over to the DOWN arrow, but pressing ENTER or SPACEBAR doesn't actually advance you to the next occurence of your search term. You'll see the TAB outline over the down arrow but nothing will activate the down arrow, except moving your mouse over the top of it and pressing the left mouse click. This is on the Linux version of qpdfview. I don't like using the mouse. I'm a keyboard power user.