Perhaps you should try some spelling variations:
"_ decolonization songs" » "_ colonization songs", "_ decolonization notes", "_ decolonization models", "decolonization _ songs"
"its colonization failed" » "its colonization still", "its organizations failed", "anti colonization failed", "jews colonization failed", "mars colonization failed"
"re decolonization case" » "re decolonization across", "re decolonization notes", "re decolonization _", "re colonization case", "box decolonization case", "war decolonization case"

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

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