Perhaps you should try some spelling variations:
"_ colonization israel" » "_ communication israel", "_ colonization still", "_ colonization history", "_ decolonization israel", "decolonization _ israel"
"open communication iran" » "human communication iran", "3 communication iran", "4 communication iran", "open communication iraq", "open communication ireland", "open communication brands"
"mars cooperation still" » "mars cooperation scale", "mars cooperation state", "mars cooperation studies", "early cooperation still", "area cooperation still", "arab cooperation still"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("mars cooperation still") or ("_ colonization israel"))) or ("open communication iran"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mars cooperation still") OR ("_ colonization israel"))) OR ("open communication iran"))*.
• Removing quotes may allow a broader search: (((( mars cooperation still ) or ( _ colonization israel ))) or ( open communication iran ))*.