Perhaps you should try some spelling variations:
"spanish colonization's mark" » "spanish colonization work"
"its colonization songs" » "its colonization still", "its colonization work", "its decolonization notes", "anti colonization songs", "jews colonization songs", "mars colonization songs"
"de cooperation still" » "de cooperation scale", "de cooperation state", "de cooperation studies", "2 cooperation still", "trade cooperation still", "area cooperation still"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("de cooperation still") OR ((("its colonization songs") OR ("spanish colonization's mark"))))~.
• Removing quotes may allow a broader search: (( de cooperation still ) or ((( its colonization songs ) or ( spanish colonization's mark ))))~.
• Adding a wildcard symbol may retrieve word variants: (("de cooperation still") or ((("its colonization songs") or ("spanish colonization's mark"))))*.