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
inflation food » inflation good, inflation from, inflation und
technology 1 » technology _
1 inflation » 10 inflation, 12 inflation, _ inflation
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 1 inflation food prices 4.1 communication case leur developpement en afrique.*.