The search process
A clear problem statement with a well-defined research topic and good keywords are very important factors for a successful search process. The search is a continuing process with repetitive operations if you are to find relevant information about your topic. What you find, or for that matter what you do not find, will often alter your problem statement.
Your use of sources mirrors the quality, relevance and importance of your project. Have you checked that your source is trustworthy? (Criticism of sources can be found later on in this guide.) Sources you use may for instance be articles, lectures, books (including e-books) or web pages.