Getting too many results?
Put quotation marks "..." around phrases.
Limit your search to academic sites:
- site:edu for US academic sites
- site:edu.au for academic Australian sites
- site:ac.uk for UK academic sites
Limit your search to a filetype:
For example, the search:
site:edu filetype:pdf "political theory"
will locate pdf documents, from US academic sites, containing the phrase "political theory"