Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
communication case » communications case, communication based, communication phase
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
developpement en » developpement et, developpement des, developpement de
technology low » technology flow, technology law, technology led
low inflation » core inflation, _ inflation
rate prices » gate prices, water prices, trade prices
prices 4.1 » price 4.1, prices 2.1, prices 3.1

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

• Adding a wildcard symbol may retrieve word variants: technology low inflation rate prices 4.1 communication case leur developpement en afrique.*.