Perhaps you should try some spelling variations:
der developpements » des developpements, deux developpements, de developpement
information needs » information networks
communication 4.3 » communication 3.3, communication 4.1, communication 3
developpements en » developpement en, developpement et, developpements de
needs power » needless power, needs poverty, yields power
power risk » powers risk, lower risk, power ric
4.3 der » 2.3 der

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information needs power risk communication 4.3 der developpements en afrique.*.