How to Find a Job on a Job Site

In order to find the job you are looking for on one of the many job sites, you need to use Boolean Logic in your search.

Where it came from
This type of searching is named after George Boole who was alive in the 1700s - quite a little time before the internet! Boolean search allows you to specify the relationships among your keywords and phrases. Boolean search is named after 19th-century mathematician George Boole, who developed theories for working with sets of information. The most commonly used Boolean search terms include AND, OR, and NOT.
Using Boolean logic
With Boolean searching you use the following:

AND Searches: The Boolean search term AND allows you to tell a search engine to locate all records containing one keyword and another. For instance, you could search for all records containing the keywords computers AND writing. This allows you to obtain a smaller number of results than you could by searching for one keyword or the other:
Search for: writing AND computers
Result: all entries containing the two keywords writing and computers

OR Searches: The Boolean search term OR allows you to tell a search engine to locate all records containing one keyword or another. For instance, you could search for all records containing the keywords writing OR computers. This allows you to obtain a larger number of results than you could by searching for one keyword or the other.

Search for: writing OR computers
Result: all entries containing either or both of the keywords writing and computers

NOT Searches: The Boolean search term NOT allows you to tell a search engine to locate all records that do not contain a particular keyword. For instance, you could search for all records containing the keywords composition NOT music. It turns out that the term composition is commonly used in both writing instruction and music instruction. If you are interested in looking only for sources that deal with written composition, you can use the Boolean term NOT to exclude sources dealing with musical composition.

Search for: composition NOT music
Result: all entries containing the keyword composition but not containing the keyword music

Complex Searches: Boolean search terms can be used in combination with each other to construct complex searches. For instance, you could search for all records containing the keywords writing or composition and the keyword computers but not the keyword music.

Search for: writing OR composition AND computers NOT music
Result: all entries containing the keywords writing or composition and computers, but not containing the keyword music

What about quotation marks
Let's say you want to search for a phrase, that is a couple of words together, you can use quotation marks to stick the words together.
So, let's say you want to add orange juice to your cocktail the best way to do this is to type:

cocktail and rum and vodka and grenadine not gin and "orange juice"

The reason it is important to stick them together is so that the search engine doesn't look for orange and juice separately. If it did that it might bring up lots of results about other sorts of juice.

Brackets
For advanced use, you can use brackets to group the expression. For example, "apple and (red or green)" would find all records containing the word "apple" and either "red" or "green" (or both). If the brackets are omitted, the and command has higher precedence, so "apple and red or green" would find all records contain "apple" and "red", and also records containing "green".

Using *
Enter a single word to find any search record that contains the exact whole word entered. For example, the search entry "world" would find records containing the word "world", but not "worldwide". If you enter more than one word, it will find entries containing all of the words you entered. For example, "world economy" will find entries containing both the word "world" and the word "economy" (but not necessarily next to each other or in that order).

To find parts of words, use an asterisk (*) to represent missing parts of the word. For example, if you enter "world*" it will match "worldwide", "worlds", etc. Similarly, "*world" would find "underworld", etc.