Perhaps you should try some spelling variations:
"_ colonization history" » "_ communication history", "_ organization history", "_ civilization history"
"de communication series" » "de communication services", "de communication systems", "de communication skills", "mobile communication series", "online communication series"
"area cooperation history" » "area corporation history", "area federation history", "asian cooperation history", "border cooperation history", "china 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: (((("_ colonization history") or ("area cooperation history"))) or ("de communication series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ colonization history") OR ("area cooperation history"))) OR ("de communication series"))*.
• Removing quotes may allow a broader search: (((( _ colonization history ) or ( area cooperation history ))) or ( de communication series ))*.