Perhaps you should try some spelling variations:
"class communication issues" » "class community issues", "class communication india", "class communication united", "mass communication issues", "plans communication issues", "crisis communication issues"
"_ colonization israel" » "_ communication israel", "_ colonization still", "_ colonization history"
"maps communication iraq" » "mass communication iraq", "mass communications iraq", "lea's communication iraq", "maps communication iran", "maps communication israel", "maps communication italy"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("_ colonization israel") or ((("maps communication iraq") or ("class communication issues"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("_ colonization israel") OR ((("maps communication iraq") OR ("class communication issues")))).
• Removing quotes may allow a broader search: (( _ colonization israel ) or ((( maps communication iraq ) or ( class communication issues )))).
• Adding a wildcard symbol may retrieve word variants: (("_ colonization israel") or ((("maps communication iraq") or ("class communication issues"))))*.