No doubt they can. Give it a try. The techniques for reading playing cards for love are given in the article. Draw your card, then check the lists above for your answer.
However, those answers are very short, of course, so if you take the meaning I've given, you can expand it. So let's say you get an awkward card like the Four of Spades (rest, recuperation, solitude, reassessment). It doesn't seem to fit, but if you consider your situation, the card might be advising you to relax, let it go, don't push it. It also might be pointing at other areas of your life. Maybe you have been getting stressed out over work or family issues? The cards always give you what you need to know.
Just grab your cards and give it a go. You'll soon be reading like a professional.