Perhaps you should try some spelling variations:
"re colonization history" » "re communication history", "re organization history", "re cooperation history", "pro colonization history", "_ colonization history", "jews colonization history"
"data communication issues" » "data community issues", "data communication india", "data communication united", "data communications issues"
"et cooperation scale" » "et cooperation case", "et cooperation state", "et cooperation sara", "et cooperations scale", "eu cooperation scale", "2 cooperation scale"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("re colonization history") or ((("data communication issues") or ("et cooperation scale"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("re colonization history") OR ((("data communication issues") OR ("et cooperation scale"))))*.
• Removing quotes may allow a broader search: (( re colonization history ) or ((( data communication issues ) or ( et cooperation scale ))))*.