Perhaps you should try some spelling variations:
"_ communication history" » "_ telecommunication history", "_ communication sector", "_ communication theory"
"empire decolonization notes" » "during decolonization notes", "empire decolonial notes", "war decolonization notes", "empire decolonization models", "empire decolonization case", "empire decolonization indonesia"
"re colonization israel" » "re communication israel", "re colonization still", "re colonization history", "pro colonization israel", "_ colonization israel", "jews colonization israel"

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

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