Internet Explorer saves your previous searches and form entries to provide suggestion when you start typing new ones. This is saved separately from your search history, so make sure to clear this too. See this guide for instructions. Your browsing history and your search history are two different things. Your browsing history is a record of all the websites that you have visited. This record is stored locally on your computer and can be easily deleted. See this guide for instruction.

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Write a summary of the previous text in Chinese:
清除浏览器的自动补充检索词。 删除你的浏览历史。