Final answer:
Quotation marks and the minus symbol can be used to refine an internet search by searching for an exact phrase or excluding certain words or phrases from the search results.
Step-by-step explanation:
Quotation marks (") and the minus symbol (-) can be used to help refine an internet search. Quotation marks are used to search for an exact phrase, so if you enclose a phrase in quotation marks, the search engine will only show results that include that exact phrase. For example, if you search for "artificial intelligence", the search engine will only show results that include that exact phrase. On the other hand, the minus symbol can be used to exclude certain words or phrases from the search results. For example, if you search for "artificial intelligence" -"self-driving cars", the search engine will exclude any results that include the phrase "self-driving cars".