Perhaps you should try some spelling variations:
"re colonization references" » "re decolonisation references", "re polarization references", "re salinization references", "pro colonization references", "_ colonization references", "jews colonization references"
"re communication theory" » "re communication technology", "de communication theory", "true communication theory", "une communication theory"
"_ communication iran" » "_ communication iraq", "_ communication ireland", "_ communication brands"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("re colonization references") or ("_ communication iran"))) or ("re communication theory"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("re colonization references") OR ("_ communication iran"))) OR ("re communication theory"))*.
• Removing quotes may allow a broader search: (((( re colonization references ) or ( _ communication iran ))) or ( re communication theory ))*.