Perhaps you should try some spelling variations:
"re communication history" » "re telecommunication history", "re communication theory", "re communication how", "de communication history", "true communication history", "une communication history"
"re colonization history" » "re organization history", "re cooperation history", "re civilization history", "pro colonization history", "_ colonization history", "jews colonization history"
"mars communication sector" » "mars telecommunication sector", "mars telecommunications sector", "mars communication series", "mass communication sector", "mass communications sector", "markets communication sector"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("re colonization history") OR ("re communication history"))) or ("mars communication sector"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("re colonization history") OR ("re communication history"))) OR ("mars communication sector")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"re colonization history\") OR (\"re communication history\"))) or (\"mars communication sector\"))".
• Removing quotes may allow a broader search: (((( re colonization history ) OR ( re communication history ))) or ( mars communication sector )).
• Adding a wildcard symbol may retrieve word variants: (((("re colonization history") OR ("re communication history"))) or ("mars communication sector"))*.