Perhaps you should try some spelling variations:
"its communication history" » "its telecommunication history", "its communication sector", "its communication how", "nets communication history", "c's communication history", "mass communication history"
"its communication theory" » "its communication technology", "nets communication theory", "c's communication theory", "mass communication theory"
"_ colonization israel" » "_ communication israel", "_ colonization still", "_ colonization history"

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