Perhaps you should try some spelling variations:
communication phase » communication case, communication based, communication paper
3.3 communication » 2.3 communication, 3.2 communication, 3.5 communication
der developpement » de developpement, des developpements, leur developpement
developpement de » developpement des, developpement durable
inflation gross » inflation across, inflation process, information gross
gross private » goes private, goods private, process private
technology d » technology 1, technology 3, technology 4
d inflation » _ inflation, 2 inflation, 6 inflation
private 3.3 » private 1.1, private 1.2, private 4.2
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: technology d inflation gross private 3.3 communication phase der developpement de afrique.*.