Perhaps you should try some spelling variations:
pearl developpement » leur developpement, de developpement, le developpement
communication china » telecommunication china, communication costs, communication cross
3.5 communication » 3.2 communication, 3 communication, 2.3 communication
developpement de » developpement des, developpement durable
technology 6 » technology _, technology 1, technology 3
6 inflation » _ inflation, 2 inflation, d inflation
index rice » index price, index die, index choice
de afrique » de l'afrique, en afrique, l afrique
rice 3.5 » rice 3.1, rice 3.3, rice 2.5

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

• Adding a wildcard symbol may retrieve word variants: technology 6 inflation index rice 3.5 communication china pearl developpement de afrique.*.