Perhaps you should try some spelling variations:
"re decolonization across" » "re decolonization africa", "re decolonization case", "re decolonization from", "_ decolonization across", "re colonization across", "box decolonization across"
"_ communication issues" » "_ community issues", "_ communication india", "_ communication united"
"re federation history" » "re migration history", "_ federation history", "3 federation history", "5 federation history"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("re decolonization across") or ("_ communication issues"))) or ("re federation history"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("re decolonization across") OR ("_ communication issues"))) OR ("re federation history"))*.
• Removing quotes may allow a broader search: (((( re decolonization across ) or ( _ communication issues ))) or ( re federation history ))*.