Perhaps you should try some spelling variations:
"crisis communication iraq" » "risk communication iraq", "mass communication iraq", "crisis communication iran", "crisis communication israel", "crisis communication italy"
"city cooperation studies" » "city cooperation series", "city cooperation sources", "city cooperation implies", "city corporation studies", "china cooperation studies", "city corporations studies"
"its colonization still" » "its colonization failed", "its colonization israel", "its colonization songs", "anti colonization still", "jews colonization still", "mars colonization still"

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: (("crisis communication iraq") or ((("its colonization still") or ("city cooperation studies"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("crisis communication iraq") OR ((("its colonization still") OR ("city cooperation studies")))).
• Removing quotes may allow a broader search: (( crisis communication iraq ) or ((( its colonization still ) or ( city cooperation studies )))).
• Adding a wildcard symbol may retrieve word variants: (("crisis communication iraq") or ((("its colonization still") or ("city cooperation studies"))))*.