Perhaps you should try some spelling variations:
"mass communication issues" » "mass community issues", "mass communication india", "mass communication united", "maps communication issues"
"primate cooperation scale" » "climate cooperation scale", "rate cooperation scale", "trade cooperation scale", "primate cooperation case", "primate cooperation state", "primate cooperation sara"
"_ colonization failed" » "_ colonization still", "_ organizations failed", "_ decolonization failed", "decolonization _ failed"

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