Perhaps you should try some spelling variations:
2.3.5 communication » 2.3 communication, 2.2.3 communication, 2.5 communication
communication case » communications case, communication based, communication phase
developpement de » developpement des, developpement durable
2 developpement » de developpement, le developpement, et developpement
inflations und » inflation und, inflation under, inflationsziel und
prices 2.3.5 » prices 2.3.1, prices 2.3.4, prices 2.3.6
und prices » fund prices, land prices, bond prices
de afrique » de l'afrique, en afrique, l afrique
case 2 » case 1

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

• Adding a wildcard symbol may retrieve word variants: technology _ inflations und prices 2.3.5 communication case 2 developpement de afrique.*.