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You can instead type “contributory *” to broaden your search and include possible phrases that include your main key term. This is extremely helpful for when you want results that might be phrased differently, or if you’re unsure of the spelling of something.įor example, maybe you want to search “contributory negligence” but know it might be called something else. * (Wildcard Symbol): The asterisk can replace one or more letters in a key term, which is why it’s called a wildcard. For comparison, “Car injury claims” will bring up results with the exact phrasing together, while “Car injury NEAR claims” can bring up results of “car injury” in the front of a sentence or paragraph, with claims towards the end. ” ” (Quotation Marks): Quotation marks around search terms will retrieve results that have the exact phrase, in the exact order within the quotations. By searching “-killed car accident law,” your results will not include deaths and instead will produce more legal help results. While this news might be helpful for understanding similar cases, maybe you want sources on car accident laws without any injured parties or deaths. This can be helpful when you want to avoid particular results.įor example, searching “-injury car accident law” will bring many articles on car accidents that involve a death, or someone “killed” in an accident. The dash should be right next to word you want excluded from the search results, without a space (example: -injury). NOT or – (dash): Using NOT or the – (dash) will exclude the topic following the Boolean operator. You can see the difference in a search result comparison when you search “Car accident AND lawyer” versus “car accident lawyer.” OR is actually a default connector to many search engines, which is why basic search results usually come up with many results.īy default, Google’s search engine will read the phrase “car accident lawyer” as “Car OR accident OR lawyer” and will bring up any results that include these keywords.

OR: This operator will gather any results that have either one or all of the terms. For the purposes of illustrating their use, they are capitalized in the examples below.ĪND: This will give you results on all the terms searched, and will exclude any results that are missing any of the terms.įor example, searching “car AND accident AND lawyer” will only gather results that include “car”, “accident” and “lawyer” together, and exclude results of just “car”, just “accident”, or just “lawyer”. An important note: when searching normally through a database, catalog, or engine, boolean operators do not have to be capitalized. Adding these to any search will generate better returns. Here are the most common Boolean search terms, explained below.

In contrast, submitting “ cat AND dog” will give significantly different top results, and the pictures of a cat and dog together. Without using the Boolean term “AND”, searching “ cat dog” will yield millions of results (most of them about the cartoon “Catdog”).

Let’s say you want pictures of a cat and dog together. The result: a list of relevant webpages that meet your specific criteria, instead of every webpage that has your term.īoolean terms are useful to anyone conducting research, because they simply generate the results you really want. Boolean logic is essentially a mathematical equation: the right terms can add or subtract results based on the variables you give. Knowing the basics to Boolean Logic will improve your search strategies, saving you time and effort.īoolean logic refers to search operators or terms that can help narrow or broaden your search results. That’s where Boolean logic comes in: Boolean search terms can help you find the most relevant websites efficiently. But when you need meaningful search results, a simple phrase or keyword might not generate the most relevant results. Search engines like Google and Yahoo! bring tons of information quickly whenever we ask for it.