Perhaps you should try some spelling variations:
"news organisations theory" » "news organizations theory", "news organisation theory", "news organization theory", "new organisations theory", "des organisations theory", "les organisations theory"
"re colonization history" » "re communication history", "re organization history", "re cooperation history", "pro colonization history", "_ colonization history", "jews colonization history"
"early operation history" » "early cooperation history", "early corporation history", "early operaciones history", "early generation history", "day operation history", "early observations history"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("news organisations theory") or ((("re colonization history") or ("early operation history"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("news organisations theory") OR ((("re colonization history") OR ("early operation history")))).
• Removing quotes may allow a broader search: (( news organisations theory ) or ((( re colonization history ) or ( early operation history )))).
• Adding a wildcard symbol may retrieve word variants: (("news organisations theory") or ((("re colonization history") or ("early operation history"))))*.