Perhaps you should try some spelling variations:
"empire decolonization notes" » "during decolonization notes", "empire decolonial notes", "war decolonization notes", "empire decolonization models", "empire decolonization case", "empire decolonization indonesia"
"_ communication theory" » "_ communication technology"
"bio colonization history" » "bio communication history", "bio organization history", "bio cooperation history", "pro colonization history", "_ colonization history", "its 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: (((("_ communication theory") or ("bio colonization history"))) or ("empire decolonization notes"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ communication theory") OR ("bio colonization history"))) OR ("empire decolonization notes")).
• Removing quotes may allow a broader search: (((( _ communication theory ) or ( bio colonization history ))) or ( empire decolonization notes )).
• Adding a wildcard symbol may retrieve word variants: (((("_ communication theory") or ("bio colonization history"))) or ("empire decolonization notes"))*.