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Keyword searching can be done using either of the
following 3 methods:
- enter each term in the textbox, separated by a space
- place the plus sign (+) between each term
Keyword searching will retrieve documents containing all the terms entered for the search, in any order and any distance from each other.
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Placing terms in inverted commas will search for them as a phrase. That is, all the terms have to appear in the order in which they were entered. eg. "bird flu" will search for documents that contain the word bird immediately preceding the word flu.
Exercise: Go to Google and perform: -
i. a keyword search for bird flu
ii. a phrase search using inverted commas "bird flu"
Q1. How many results are there from each search?
Q2. Why do you think there is a difference? |
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| Google's Advanced Search allows you to limit your search by date, language and file format. You can also use it to perform basic keyword or phrase searching - the different textboxes and drop-down menu will guide you through the process. |
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| Google searches for alternative word endings ("word stemming") eg. if you search for molecule it will search for the singular form as well as the plural form molecules. |
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| 5. Be specific in your search |
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As there is so much information available on the internet, enter as many keywords and/or phrases as you can to narrow your search.
Exercise: Go to Google and perform: -
i. a keyword search for bird flu diagnosis
ii. a combination of phrase and keyword search for "bird flu" OR "avian influenza" diagnosis
Q1. How many results are there from each
search? NB: Sometimes it might not be appropriate to convert
all your search terms into phrases eg. searching for the
phrase "bird flu diagnosis" would exclude
documents which use the phrase "diagnosis of bird
flu". You could also try the search in http://ranking.thumbshots.com
to see the comparison of results from the two searches.
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The information above provides a basic outline for searching the internet using Google. If you would like to learn more, please go to Google help.
It is important that you evaluate your results to include only authoritative and scholarly information in your projects and assignments. Go to the next section for details about evaluating internet resources.
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