To perform a search just type the keywords you are looking for into the input box and click on [Search] or press [Return]. You can type just keywords or a whole sentence or questions - Branze! doesn't mind and will still find the most relevant pages for you. All searches are also case insensitive. So, for example, the following searches are equivalent:

What is Global Warming?
what is global warming
global warming

Note that the question mark is ignored. You may also wonder why the third one of these searches is equivalent to the others. The reason is that the words what and is are so common in the English language that we ignore them. They are referred to as stop words.