Perhaps you should try some spelling variations:
"mass communication issues" » "mass community issues", "mass communication india", "mass communication united", "maps communication issues"
"_ colonization still" » "_ colonization failed", "_ colonization israel", "_ colonization songs", "_ decolonization still", "decolonization _ still"
"re cooperation scale" » "re cooperation case", "re cooperation state", "re cooperation sara", "de cooperation scale", "area cooperation scale", "rate cooperation scale"

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