Perhaps you should try some spelling variations:
"crisis communication issues" » "risk communication issues", "mass communication issues", "crisis community issues", "crisis communication india", "crisis communication united"
"re cooperation still" » "re cooperation scale", "re cooperation state", "re cooperation studies", "de cooperation still", "area cooperation still", "rate cooperation still"
"trade cooperation still" » "trade cooperation scale", "trade cooperation state", "trade cooperation studies", "border cooperation 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 issues") or ((("re cooperation still") or ("trade cooperation still"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("crisis communication issues") OR ((("re cooperation still") OR ("trade cooperation still")))).
• Removing quotes may allow a broader search: (( crisis communication issues ) or ((( re cooperation still ) or ( trade cooperation still )))).
• Adding a wildcard symbol may retrieve word variants: (("crisis communication issues") or ((("re cooperation still") or ("trade cooperation still"))))*.