Perhaps you should try some spelling variations:
"_ communication history" » "_ telecommunication history", "_ communication sector", "_ communication theory"
"mars decolonization notes" » "mars decolonization models", "mars decolonization case", "mars decolonization indonesia", "mars colonization notes", "war decolonization notes", "empire decolonization notes"
"coca colonization israel" » "coca communication israel", "coca colonization still", "coca colonization history", "mrsa colonization israel", "africa colonization israel", "human colonization israel"

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