Perhaps you should try some spelling variations:
"re colonization history" » "re communication history", "re organization history", "re cooperation history", "pro colonization history", "_ colonization history", "jews colonization history"
"une communication theory" » "une communication technology", "d'une communication theory", "ante communication theory", "de communication theory"
"re decolonization _" » "_ decolonization _", "box decolonization _", "war decolonization _", "re colonization _"

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