Perhaps you should try some spelling variations:
"re decolonisation references" » "re colonization references", "re declaration references", "re recognition references", "_ decolonisation references", "4.4 decolonisation references", "_ decolonization references"
"de communication theory" » "de communication technology", "mobile communication theory", "online communication theory"
"_ colonization israel" » "_ communication israel", "_ colonization still", "_ colonization history", "_ decolonization israel", "decolonization _ israel"

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: (((("re decolonisation references") OR ("_ colonization israel"))) OR ("de communication theory"))~.
• Removing quotes may allow a broader search: (((( re decolonisation references ) or ( _ colonization israel ))) or ( de communication theory ))~.
• Adding a wildcard symbol may retrieve word variants: (((("re decolonisation references") or ("_ colonization israel"))) or ("de communication theory"))*.