Perhaps you should try some spelling variations:
"its communication history" » "its telecommunication history", "its communication sector", "its communication theory", "nets communication history", "c's communication history", "mass communication history"
"jews colonization still" » "jews colonization failed", "jews colonization israel", "jews colonization songs", "its colonization still", "mars colonization still", "re colonization still"
"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: (("its communication history") OR ((("mars cooperation still") OR ("jews colonization still"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"its communication history\") OR (((\"mars cooperation still\") OR (\"jews colonization still\"))))".
• Removing quotes may allow a broader search: (( its communication history ) OR ((( mars cooperation still ) OR ( jews colonization still )))).
• Adding a wildcard symbol may retrieve word variants: (("its communication history") OR ((("mars cooperation still") OR ("jews colonization still"))))*.