Perhaps you should try some spelling variations:
"c's communication issues" » "c's community issues", "c's communication india", "c's communication united", "lea's communication issues", "class communication issues", "mass communication issues"
"mars colonization israel" » "mars communication israel", "mars colonization still", "mars colonization history", "mrsa colonization israel", "its colonization israel", "jews colonization israel"
"local cooperation history" » "local corporation history", "local federation history", "global cooperation history", "social cooperation history", "local conservation history"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("c's communication issues") or ("mars colonization israel"))) or ("local cooperation history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("c's communication issues") OR ("mars colonization israel"))) OR ("local cooperation history")).
• Removing quotes may allow a broader search: (((( c's communication issues ) or ( mars colonization israel ))) or ( local cooperation history )).
• Adding a wildcard symbol may retrieve word variants: (((("c's communication issues") or ("mars colonization israel"))) or ("local cooperation history"))*.