Perhaps you should try some spelling variations:
"_ decolonisation from" » "_ decolonization from", "_ decolonisation _", "_ decolonisation 1"
"its colonization still" » "its colonization failed", "its colonization israel", "its colonization songs", "anti colonization still", "jews colonization still", "mars colonization still"
"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: (((("_ decolonisation from") or ("its colonization still"))) or ("its federation history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ decolonisation from") OR ("its colonization still"))) OR ("its federation history"))*.
• Removing quotes may allow a broader search: (((( _ decolonisation from ) or ( its colonization still ))) or ( its federation history ))*.