Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
3.5 communication » 3.2 communication, 3 communication, 2.3 communication
communication can » communication canada, communication china, communication 3
developpement en » developpement et, developpement des, developpement de
inflation und » inflation index, inflation _, inflation tax
und prices » fund prices, land prices, bond prices
prices 3.5 » prices 3.1, prices 3.2, prices 7.5
can leur » can learn, can lead, a leur

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

• Adding a wildcard symbol may retrieve word variants: technology _ inflation und prices 3.5 communication can leur developpement en afrique.*.