Perhaps you should try some spelling variations:
"_ decolonization failed" » "_ colonization failed", "_ decolonization case", "_ decolonization africa", "decolonization _ failed"
"its decolonization islam" » "its decolonization from", "its decolonization _", "its colonization israel", "its colonization islam", "box decolonization islam", "war decolonization islam"
"its cooperation history" » "its corporation history", "its federation history", "city cooperation history", "et cooperation history"

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

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