If you find yourself searching through the same sites over and over again, you may want to consider utilizing search keywords. For example, if you search WikiPedia a lot, you can use search keywords to access an intra-Wiki search directly from the main address bar.
To create a search keyword, right-click on the search box within the site you'd like to add. This action will prompt a pull-down menu where you can choose 'Add a Keyword for this Search'. This in turn prompts a pop-up bookmark window, which includes a Keyword field where you can create a nickname for your search, for example, 'wiki.
Once added, you can access that search by typing the keyword followed by the search into the address bar. For example, type 'wiki windows 10' in the search bar to be taken directly to Windows 10 Wiki page.