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What
are search engines?
Search engines
are
specialized locator utilities used for
finding websites on the internet.
When to use search engines?
-
When website address
is unknown
-
When searching for new website address.
-
When searching for professional information.
-
Here is a search engine in a Vietnamese
website:
How to use search engines?
Example: Finding
a
webpage about “Du lich o Hue” (City of Hue,
Tourism)
- Type the keyword “du lich”
into the search box
-
Click on the Search button, then press
Enter.
-
Results will be voluminous about “du lich” which is a general category.
For better results, specific information is
needed, such as “Du Lich Hue”. To optimize
the search even further,
use
Advanced Search.
|
Find any term
(Advanced search operator: OR) |
The search will return results that
include either one or more of the
keywords entered. |
|
Find all terms
(Advanced search operator: AND) |
The search will return results that
include all of the keywords entered.
This will bring up fewer results, but
may be more accurate than an OR search. |
|
Without the term:
(Advanced search operator: NOT) |
The search will return results with the
keywords together as a phrase if you
select this option or enclose the phrase
in quotation marks. |
|
Near the term:
(Advanced search operator: NEAR) |
This will return results where the
keywords are found within a few words of
each other. |
-
To limit the scope of the search, use
meta search with
default words
-
Example: time limit, language
...
Using advanced search with default word
“AND” to find information on “Hue Tourism,
2003”.
-
Type the keywords “du lich” and “Hue”
-
Type
the
timeframe (year) desired.
-
Press Enter.
Example:
Kinh *, the search will results in
Kinh tế,
Kinh doanh,
Kinh nghiệm
...
Common search engines
http://www.alltheweb.com
http://www.answers.com
http://www.google.com
http://www.scholar.google.com
http://www.mamma.com
http://www.vinaseek.com
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