Date post: | 09-Feb-2017 |
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Google Advanced Search
Review Chap 3; in particular p. 46-50 in the textbook.
See link for advanced search operators we will cover below:
https://support.google.com/websearch/answer/2466433?hl=en&ref_topic=3081620
Differences in Web Searching Versus Database Searching
Web Searches
Can draw up many more records than a database search
Are mainly keyword searches:
A search for drug abuse will search entire web sites and pages for the term:
Google Search
over 2 million results
Google helps searchers out by placing more relevant sites at the top [like .gov and .edu sites]
Google searches by keywords in the entire website text
Compare to Database Search
ProQuest keyword search –here we searched all fields
Keywords from citations/abstracts [NOT full text of article
Other ways to narrow a search
Some Important Basic Search Tips for Google
Add relevant words if your search doesn’t bring up results you want:
First try: [ puppy ]More precise: [ puppy training ]Even more precise: [ dalmatian puppy training class ]
Use only the important words rather than a full sentence or question:
Not ideal: [ country where bats are an omen of good luck ]Better: [ bats good luck ]
Basics of Searching Google
Stop Words: Common words like "the," "a," and "for," are usually ignored
However, they might not be if they're integral to your search phrase.
For example, the word "the" differentiates a search for
[ the who ] (likely referring to the band)
and [ WHO ] (likely referring to the World Health Organization).
AND searching in Google
AND is implied between words in Google
This means you do not have to add the operator
OR searching in Google
OR is not added automatically
It’s greatly expanded our search and probably added unrelated or too broad sites
Using OR with synonyms
Sites with both terms
Synonym searching is a
powerful way to draw up
similar terms in a search
AND between terms by default Add OR to link synonyms
NOT
NOT is not often used in Google searches (other search limiters work better in Google, as we will see later)
Drug NOTabuse
Google - Other Advanced Search Techniques
Google features several other search limiters, some of which are similar to databases [like ProQuest or Ebsco] and some of which are not
Google – Some Common Search Limiters
Phrase Searching “ “
Exclude a term -
Link two terms _ [underscore]
Site, domain and related search :
Fill in the Blank Query *
Search for non-HTML files filetype:
See Google Operators for example searcheshttps://support.google.com/websearch/answer/136861
Phrase Searching
This allows searches for specific phrases within websites and pages
Phrase Searching is a useful technique to search the texts of entire websites for a phrase.
Link two terms underscore
Use of _links two terms. This finds quicksort or terms linked by underscore
This finds quicksort or terms linked by underscore
This is a new Google operator, and really seems to replicate searching by Boolean operator AND! We will see how long this one sticks around.
Google Operators Change Every so Often
As an aside, advanced operators change periodically with Google. Two that recently were ‘deprecated’ [discontinued] are + [required term in search] and tilde~ [found related words in a search.
According to Google:
The + was discontinued in 2011 [possibly due to Google+ and confusion with new newwork] http://webscripts.softpedia.com/blog/Google-Search-Drops-the-Operator-May-Be-
Linked-to-Google-229458.shtml
The tilde was discontinued due to decreasing use: http://searchengineland.com/google-drops-another-search-operator-tilde-for-
synonyms-164403
"fill in the blank" query * query
Use * to replace words in a query [* replaces word ‘penny’ in search]
This is a useful search not
well-known to beginning users
– good for finding facts and
historical dates, names etc.
Search for filetype:Example search:global warming filetype:pdf
Non-HTML file types:http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=35287
Some examples of documents
to search on Google are .pdf,
PowerPoint, video, Microsoft
Office files, Flash .swf files
Google - Advanced Search Techniques
Links for Search Techniques [refer to the below for the following slides]:\
https://support.google.com/websearch/answer/2466433?hl=en&ref_topic=3081620 [Google support for search techniques]
http://www.internetseer.com/services/article.xtp?id=8472
[another page for Google Search Techniques]
http://www.amplify-interactive.com/blog/search-engines/advanced-google-search-tips/ [good summary of search techniques]