Perhaps you should try some spelling variations:
"re colonization history" » "re communication history", "re organization history", "re cooperation history", "pro colonization history", "jews colonization history", "mars colonization history"
"re communication sector" » "re telecommunication sector", "re telecommunications sector", "re communication series", "de communication sector", "true communication sector", "une communication sector"
"_ colonization israel" » "_ communication israel", "_ colonization still", "_ decolonization islam", "_ decolonization israel", "decolonization _ 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 history") or ("re communication sector"))) or ("_ colonization israel"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("re colonization history") OR ("re communication sector"))) OR ("_ colonization israel")).
• Removing quotes may allow a broader search: (((( re colonization history ) or ( re communication sector ))) or ( _ colonization israel )).
• Adding a wildcard symbol may retrieve word variants: (((("re colonization history") or ("re communication sector"))) or ("_ colonization israel"))*.