In order for the Library Catalogue or a database to interpret your question, you have to construct a search statement that could look something like this:
(media or television or newspaper* or radio)
(survey* or poll* or "election forecasting")
(campaign* or "election debates" or "political parties")
When searching for articles in a database, like Academic Search Complete, using a search statement where all keywords and their related terms are searched together at once will allow you to cut down on the number of searches you'll need to do and should save you time.
It's common to miss important terms when searching on a topic for the first time. There's usually no need to worry since most basic keyword searches will quickly reveal additional terms. It's a normal process to keep repeating your search, adding new keywords as you go, until you find all the documents you need.
What are all the different elements of a search statement?
OR: Used to connect keywords or phrases that are related.
By using the search operator OR, the Library Catalogue or database will retrieve all the documents that contain any of the words. This gives a much broader list of results.
Remember: OR gives you MORE!
AND: Used to link different ideas together.
By using the search operator AND, the library catalogue or database will retrieve only the documents that contain both words.
If you need to search for a phrase containing two words or more, you may need to use quotation marks (" "). Using quotation marks ensures that results retrieved contain only the exact phrase.
In the Library Catalogue or a database, if you type attention deficit disorder without using quotation marks, you will retrieve documents that contain those three words but not necessarily documents that contain the exact phrase "attention deficit disorder".
The asterisk (also called truncation) used at the end of a word will find all variants of that word.
Using the asterisk at the end of environment* would retrieve any document containing the words:
environment / environments / environmental / environmentally / environmentalism / environmentalist
Placing the asterisk too soon in a word may produce some unintended results. For example, "env*" will search for "environment," but it will also find unrelated terms like: "envoy," "envious," "envenom," "envelope," "envision," etc.
Your search strategy will usually include more than one idea. In order for the Library Catalogue or database to understand exactly what you are looking for, use parentheses ( ) to group all the related search terms that represent one idea.
Main ideas: indoor air quality; workplace; productivity
Possible search statement: ("indoor air quality" or "indoor air pollution" or "air quality" or "air pollution") and (workplace or "work environment" or office*) and productivity