Perhaps you should try some spelling variations:
"_ communication history" » "_ telecommunication history", "_ communication sector", "_ communication theory"
"africa organization issues" » "african organizations issues", "service organization issues", "qaida organization issues", "africa organizations issues", "africa organizational issues", "africa urbanization issues"
"jews colonization failed" » "jews colonization still", "jews organizations failed", "its colonization failed", "mars colonization failed", "re colonization failed"

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

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