For simple searches, there is a search box at the top of every page. Type what you are looking for in the box. Partial matches will appear in a dropdown list. Select any page in the list to go to that page. Or, select the magnifying glass "Go" button, or press ↵ Enter, to go to a full search result. For advanced searches, see Help:Searching.
There are other ways to browse and explore Wikipedia articles; many can be found at Portal:Contents. Also see our disclaimer for cautions about Wikipedia's limitations.
If you don't feel ready to fix the article yourself, please post a message on the article's talk page. This will bring the matter to the attention of others who work on that article. There is a "Talk" link at the beginning of every article page.
If searching Wikipedia has not answered your question (for example, questions like "Which country has the world's largest fishing fleet?"), try the Reference Desk. Volunteers there will attempt to answer your questions on any topic, or point you towards the information you need.