Perhaps you should try some spelling variations:
"re telecommunication sector" » "re telecommunications sector", "re telecommunication systems", "re telecommunication services", "re teletelecommunications sector", "re telecommunication series", "re telecommunication social", "_ telecommunication sector", "3 telecommunication sector", "from telecommunication sector"
"re communication sector" » "re telecommunications sector", "re communication series", "re communication social", "de communication sector", "true communication sector", "une communication sector"
"re colonization israel" » "re communication israel", "re colonization still", "re colonization history", "pro colonization israel", "_ colonization israel", "jews colonization israel"

Try widening your search to All Fields.

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