Perhaps you should try some spelling variations:
tchad communications » chad communications, ecuador communications, iceland communications
das developpement » des developpements, de developpement, du developpement
care information » more information, change information, trade information
communications a » communications _, communications law, communications media
developpement et » developpement des, developpement de, development east
technology care » technology case, technology curve, technology can
et afrique » en afrique, l afrique
a das » 1 das, 2 das, 3 das
3 au » 3 auf, 3 zu, 3 eu

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: "technology care information ((3 au) OR (3 a)) tchad communications a das developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology care information ((3 au) OR (3 a)) tchad communications a das developpement et afrique.*.