Perhaps you should try some spelling variations:
"mass communication issues" » "mass community issues", "mass communication india", "mass communication united", "maps communication issues"
"_ colonization israel" » "_ communication israel", "_ colonization still", "_ colonization history"
"anti cooperation scale" » "anti cooperation case", "anti cooperation state", "anti cooperation sara", "sti cooperation scale", "area cooperation scale", "arab cooperation scale"

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 israel") OR ("anti cooperation scale"))) OR ("mass communication issues"))~.
• Removing quotes may allow a broader search: (((( _ colonization israel ) or ( anti cooperation scale ))) or ( mass communication issues ))~.
• Adding a wildcard symbol may retrieve word variants: (((("_ colonization israel") or ("anti cooperation scale"))) or ("mass communication issues"))*.