Perhaps you should try some spelling variations:
"de communication issues" » "de community issues", "de communication india", "de communication united", "mobile communication issues", "online communication issues"
"coca federation history" » "coca migration history", "road federation history", "a federation history", "chicago federation history"
"_ colonization still" » "_ colonization failed", "_ colonization israel", "_ colonization songs", "_ decolonization still", "decolonization _ still"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("coca federation history") or ((("de communication issues") or ("_ colonization still"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("coca federation history") OR ((("de communication issues") OR ("_ colonization still")))).
• Removing quotes may allow a broader search: (( coca federation history ) or ((( de communication issues ) or ( _ colonization still )))).
• Adding a wildcard symbol may retrieve word variants: (("coca federation history") or ((("de communication issues") or ("_ colonization still"))))*.