Perhaps you should try some spelling variations:
1.4 communication » 5.4 communication, 1.1 communication, 1.3 communication
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
inflation seit » inflation credit, inflation der, inflation pt
seit price » spot price, meat price, debt price
price 1.4 » price 11.4, price 4.4, price 1.3
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology _ inflation seit price 1.4 communication costs 4 developpement de l'afrique.*.