Perhaps you should try some spelling variations:
communications 5 » communications _, communications a, communications pt
does development » dams development, ides development, smes development
development doi » development doing, development does, development d
technologies 4 » technologies _
4 information » 2 information, 1 information
information a » information age, information about
5 does » 2 does, 4 does
das 4 » das 14, day 4, des 4

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies 4 information a ((das 4) OR (das _)) communications 5 does development doi afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 information a ((das 4) OR (das _)) communications 5 does development doi afrique.*.