Perhaps you should try some spelling variations:
"jews cooperation studies" » "jews cooperation series", "jews cooperation sources", "jews cooperation implies", "de cooperation studies", "eu cooperation studies", "peer cooperation studies"
"its colonization failed" » "its colonization still", "its organizations failed", "anti colonization failed", "jews colonization failed", "mars colonization failed"
"et cooperation history" » "et corporation history", "et federation history", "et cooperations history", "eu cooperation history", "2 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: (((("jews cooperation studies") or ("its colonization failed"))) or ("et cooperation history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("jews cooperation studies") OR ("its colonization failed"))) OR ("et cooperation history"))*.
• Removing quotes may allow a broader search: (((( jews cooperation studies ) or ( its colonization failed ))) or ( et cooperation history ))*.