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"
"its colonization israel" » "its communication israel", "its colonization still", "its colonization history", "anti colonization israel", "jews colonization israel", "mars colonization israel"
"mars cooperation history" » "mars corporation history", "mars federation history", "early cooperation history", "area cooperation history", "arab cooperation history"

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

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