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"
"anti colonization israel" » "anti communication israel", "anti colonization still", "anti colonization history", "its colonization israel", "africa colonization israel", "_ 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: (((("anti colonization israel") OR ("mars cooperation history"))) OR ("c's communication issues"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"anti colonization israel\") OR (\"mars cooperation history\"))) OR (\"c's communication issues\"))".
• Removing quotes may allow a broader search: (((( anti colonization israel ) OR ( mars cooperation history ))) OR ( c's communication issues )).
• Adding a wildcard symbol may retrieve word variants: (((("anti colonization israel") OR ("mars cooperation history"))) OR ("c's communication issues"))*.