Perhaps you should try some spelling variations:
"_ decolonization failed" » "_ colonization failed", "_ decolonization case", "_ decolonization africa", "decolonization _ failed"
"c's communication iran" » "c's communication iraq", "c's communication ireland", "c's communication brands", "lea's communication iran", "class communication iran", "mass communication iran"
"its federation history" » "its migration history", "les federations history", "_ federation history", "3 federation history"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("c's communication iran") or ("_ decolonization failed"))) or ("its federation history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("c's communication iran") OR ("_ decolonization failed"))) OR ("its federation history")).
• Removing quotes may allow a broader search: (((( c's communication iran ) or ( _ decolonization failed ))) or ( its federation history )).
• Adding a wildcard symbol may retrieve word variants: (((("c's communication iran") or ("_ decolonization failed"))) or ("its federation history"))*.