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

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