Perhaps you should try some spelling variations:
"_ colonization history" » "_ communication history", "_ organization history", "_ cooperation history"
"c's communication issues" » "c's community issues", "c's communication india", "c's communication united", "lea's communication issues", "class communication issues", "mass communication issues"
"its communication iraq" » "its communication iran", "its communication israel", "its communication italy", "nets communication iraq", "mass communication iraq", "les communications iraq"

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: (("_ colonization history") OR ((("its communication iraq") OR ("c's communication issues"))))~.
• Removing quotes may allow a broader search: (( _ colonization history ) or ((( its communication iraq ) or ( c's communication issues ))))~.
• Adding a wildcard symbol may retrieve word variants: (("_ colonization history") or ((("its communication iraq") or ("c's communication issues"))))*.