Perhaps you should try some spelling variations:
"its cooperation history" » "its corporation history", "its federation history", "et cooperation history", "its operation history"
"jews colonization songs" » "jews colonization still", "jews colonization work", "jews decolonization notes", "its colonization songs", "mars colonization songs", "re colonization songs"
"city cooperation still" » "city cooperation scale", "city cooperation state", "city cooperation studies", "city corporation still", "china cooperation still", "city corporations still"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("city cooperation still") or ("jews colonization songs"))) or ("its cooperation history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("city cooperation still") OR ("jews colonization songs"))) OR ("its cooperation history")).
• Removing quotes may allow a broader search: (((( city cooperation still ) or ( jews colonization songs ))) or ( its cooperation history )).
• Adding a wildcard symbol may retrieve word variants: (((("city cooperation still") or ("jews colonization songs"))) or ("its cooperation history"))*.