Perhaps you should try some spelling variations:
"technology political aspects study africa" » "technology policy aspects study africa", "technology policies aspects study africa", "technology political aspects study african", "technology political aspects study latrica", "technology political aspects studies africa"
"technology critical aspects south africa" » "technology clinical aspects south africa", "technology practical aspects south africa", "technology chemical aspects south africa"
"technology optical aspects south africa" » "technology tactical aspects south africa", "technology ethical aspects south africa", "technology medical aspects south africa"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("technology optical aspects south africa") OR ("technology critical aspects south africa"))) OR ("technology political aspects study africa")).
• Removing quotes may allow a broader search: (((( technology optical aspects south africa ) or ( technology critical aspects south africa ))) or ( technology political aspects study africa )).
• Adding a wildcard symbol may retrieve word variants: (((("technology optical aspects south africa") or ("technology critical aspects south africa"))) or ("technology political aspects study africa"))*.