Perhaps you should try some spelling variations:
investigative » investigating, investigation, investigations
investigate » investigating, investigation
investigates » investigatings, investigations, investigating, investigation
investigatings » investigating, investigations, investigaciones
journalism" » journalists"
journals" » journal"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: "(investigative OR (investigate OR (investigates OR investigatings))) (journalism" or journals")~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"(investigative or (investigate or (investigates OR investigatings))) (journalism\" or journals\")~".
• Removing quotes may allow a broader search: (investigative or (investigate or (investigates OR investigatings))) (journalism or journals )~.
• Adding a wildcard symbol may retrieve word variants: "(investigative or (investigate or (investigates OR investigatings))) (journalism" or journals")*.