Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
development east » development southeast, development 1
technologies do » technologies de, technologies box, technologies daf
do information » 2 information, 1 information, 3 information
east africa » west africa
web de » web der, web die, web le
2.4 le » 2.4 les, 1.4 le, 7.2.4 le

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 do information _ web de communication ((2.4 le) OR (2.4 la)) development east africa.~".
• Adding a wildcard symbol may retrieve word variants: technologies do information _ web de communication ((2.4 le) OR (2.4 la)) development east africa.*.