Perhaps you should try some spelling variations:
"political terrorist" » "political terrorism", "political terror", "critical terrorism"
"political theorist" » "political theorists", "political theory", "political terrorism"
"political theories" » "politics theories", "political theory", "critical theories"
"critical theory" » "political theory"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("political theorist") or ((("political theories") or ("critical theory"))))) or ("political terrorist"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("political theorist") OR ((("political theories") OR ("critical theory"))))) OR ("political terrorist")).
• Removing quotes may allow a broader search: (((( political theorist ) or ((( political theories ) or ( critical theory ))))) or ( political terrorist )).
• Adding a wildcard symbol may retrieve word variants: (((("political theorist") or ((("political theories") or ("critical theory"))))) or ("political terrorist"))*.