I had somebody count the number of books with "happiness" in the title published in the last five years and they gave up after about 40, and there were many more.
لقد قمت بتكليف شخص ما لإحصاء الكتب ذات العنوان " السعادة" التي نُشرت في الخمس سنوات الماضية وقد أعطاني حوالي 40، وهناك المزيد أكثر.