In the top left-hand corner of the Trader, you will find the search box. Here you can search for products to trade. You can search for a stock by name, ticker symbol, or ISIN code. In the App, you find the search by clicking on the "Search" symbol below in the menu bar.
Products can be found using the name, the ISIN and the ticker code, as long as the ticker code contains more than three characters. The ticker code is unique to a product on an exchange. ISIN stands for International Securities Identification Number and identifies tradable securities by their unique code. Different listings of the same product on different exchanges will have the same ISIN.