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"
"city cooperation implies" » "city cooperation series", "city cooperation studies", "city cooperation civility", "city corporation implies", "china cooperation implies", "city corporations implies"
"jews colonization still" » "jews colonization failed", "jews colonization israel", "jews colonization songs", "its colonization still", "mars colonization still", "re colonization still"

You may be able to get more results by adjusting your search query.

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